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Finding the Fourth Proportional to 266,107.38, 399,364.11 and 97,787.22

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Solution

The fourth proportional to 266,107.38, 399,364.11 and 97,787.22 is: 146,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,107.38 : 399,364.11 = 97,787.22 : x
  2. Step 2: Convert to fraction form
    266,107.38/399,364.11 = 97,787.22/x
  3. Step 3: Cross multiply
    266,107.38x = 399,364.11 × 97,787.22
  4. Step 4: Simplify right side
    266,107.38x = 39,052,706,084.67
  5. Step 5: Solve for x
    x = 39,052,706,084.67/266,107.38
  6. Step 6: Final answer
    x = 146,755.44

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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.