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Finding the Fourth Proportional to 266,990.38, 400,545.56 and 89,492.85

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Solution

The fourth proportional to 266,990.38, 400,545.56 and 89,492.85 is: 134,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,990.38 : 400,545.56 = 89,492.85 : x
  2. Step 2: Convert to fraction form
    266,990.38/400,545.56 = 89,492.85/x
  3. Step 3: Cross multiply
    266,990.38x = 400,545.56 × 89,492.85
  4. Step 4: Simplify right side
    266,990.38x = 35,845,963,439.58
  5. Step 5: Solve for x
    x = 35,845,963,439.58/266,990.38
  6. Step 6: Final answer
    x = 134,259.38

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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.