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Finding the Fourth Proportional to 634,148.75, 951,212.15 and 213,424.62

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Solution

The fourth proportional to 634,148.75, 951,212.15 and 213,424.62 is: 320,133.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,148.75 : 951,212.15 = 213,424.62 : x
  2. Step 2: Convert to fraction form
    634,148.75/951,212.15 = 213,424.62/x
  3. Step 3: Cross multiply
    634,148.75x = 951,212.15 × 213,424.62
  4. Step 4: Simplify right side
    634,148.75x = 203,012,090,586.01
  5. Step 5: Solve for x
    x = 203,012,090,586.01/634,148.75
  6. Step 6: Final answer
    x = 320,133.24

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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.