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Finding the Fourth Proportional to 207,755.92, 286,602.96 and 136,104.40

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Solution

The fourth proportional to 207,755.92, 286,602.96 and 136,104.40 is: 187,758.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,755.92 : 286,602.96 = 136,104.40 : x
  2. Step 2: Convert to fraction form
    207,755.92/286,602.96 = 136,104.40/x
  3. Step 3: Cross multiply
    207,755.92x = 286,602.96 × 136,104.40
  4. Step 4: Simplify right side
    207,755.92x = 39,007,923,909.02
  5. Step 5: Solve for x
    x = 39,007,923,909.02/207,755.92
  6. Step 6: Final answer
    x = 187,758.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.