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Finding the Fourth Proportional to 356,449.89, 534,699.44 and 103,732.47

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Solution

The fourth proportional to 356,449.89, 534,699.44 and 103,732.47 is: 155,605.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,449.89 : 534,699.44 = 103,732.47 : x
  2. Step 2: Convert to fraction form
    356,449.89/534,699.44 = 103,732.47/x
  3. Step 3: Cross multiply
    356,449.89x = 534,699.44 × 103,732.47
  4. Step 4: Simplify right side
    356,449.89x = 55,465,693,618.82
  5. Step 5: Solve for x
    x = 55,465,693,618.82/356,449.89
  6. Step 6: Final answer
    x = 155,605.87

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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.