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Finding the Fourth Proportional to 266,558.40, 399,858.24 and 89,066.03

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Solution

The fourth proportional to 266,558.40, 399,858.24 and 89,066.03 is: 133,605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,558.40 : 399,858.24 = 89,066.03 : x
  2. Step 2: Convert to fraction form
    266,558.40/399,858.24 = 89,066.03/x
  3. Step 3: Cross multiply
    266,558.40x = 399,858.24 × 89,066.03
  4. Step 4: Simplify right side
    266,558.40x = 35,613,784,000.30
  5. Step 5: Solve for x
    x = 35,613,784,000.30/266,558.40
  6. Step 6: Final answer
    x = 133,605.93

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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.