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Finding the Fourth Proportional to 634,189.80, 951,284.70 and 260,020.20

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Solution

The fourth proportional to 634,189.80, 951,284.70 and 260,020.20 is: 390,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,189.80 : 951,284.70 = 260,020.20 : x
  2. Step 2: Convert to fraction form
    634,189.80/951,284.70 = 260,020.20/x
  3. Step 3: Cross multiply
    634,189.80x = 951,284.70 × 260,020.20
  4. Step 4: Simplify right side
    634,189.80x = 247,353,237,950.94
  5. Step 5: Solve for x
    x = 247,353,237,950.94/634,189.80
  6. Step 6: Final answer
    x = 390,030.30

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Double scale
Find fourth proportional to 634,190.80, 951,286.20 and 260,021.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.