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Finding the Fourth Proportional to 657,785.94, 986,678.94 and 159,149.94

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Solution

The fourth proportional to 657,785.94, 986,678.94 and 159,149.94 is: 238,724.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,785.94 : 986,678.94 = 159,149.94 : x
  2. Step 2: Convert to fraction form
    657,785.94/986,678.94 = 159,149.94/x
  3. Step 3: Cross multiply
    657,785.94x = 986,678.94 × 159,149.94
  4. Step 4: Simplify right side
    657,785.94x = 157,029,890,997.03
  5. Step 5: Solve for x
    x = 157,029,890,997.03/657,785.94
  6. Step 6: Final answer
    x = 238,724.91

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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.