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Finding the Fourth Proportional to 266,566.54, 399,870.42 and 89,074.18

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Solution

The fourth proportional to 266,566.54, 399,870.42 and 89,074.18 is: 133,618.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,566.54 : 399,870.42 = 89,074.18 : x
  2. Step 2: Convert to fraction form
    266,566.54/399,870.42 = 89,074.18/x
  3. Step 3: Cross multiply
    266,566.54x = 399,870.42 × 89,074.18
  4. Step 4: Simplify right side
    266,566.54x = 35,618,129,767.76
  5. Step 5: Solve for x
    x = 35,618,129,767.76/266,566.54
  6. Step 6: Final answer
    x = 133,618.16

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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.