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Finding the Fourth Proportional to 266,453.15, 399,663.32 and 88,945.29

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Solution

The fourth proportional to 266,453.15, 399,663.32 and 88,945.29 is: 133,412.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,453.15 : 399,663.32 = 88,945.29 : x
  2. Step 2: Convert to fraction form
    266,453.15/399,663.32 = 88,945.29/x
  3. Step 3: Cross multiply
    266,453.15x = 399,663.32 × 88,945.29
  4. Step 4: Simplify right side
    266,453.15x = 35,548,169,455.04
  5. Step 5: Solve for x
    x = 35,548,169,455.04/266,453.15
  6. Step 6: Final answer
    x = 133,412.46

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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.