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Finding the Fourth Proportional to 201,799, 301,951.17 and 126,317.80

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Solution

The fourth proportional to 201,799, 301,951.17 and 126,317.80 is: 189,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,799 : 301,951.17 = 126,317.80 : x
  2. Step 2: Convert to fraction form
    201,799/301,951.17 = 126,317.80/x
  3. Step 3: Cross multiply
    201,799x = 301,951.17 × 126,317.80
  4. Step 4: Simplify right side
    201,799x = 38,141,807,501.83
  5. Step 5: Solve for x
    x = 38,141,807,501.83/201,799
  6. Step 6: Final answer
    x = 189,008.90

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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.