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Finding the Fourth Proportional to 243,779.81, 365,736.99 and 101,691.87

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Solution

The fourth proportional to 243,779.81, 365,736.99 and 101,691.87 is: 152,565.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,779.81 : 365,736.99 = 101,691.87 : x
  2. Step 2: Convert to fraction form
    243,779.81/365,736.99 = 101,691.87/x
  3. Step 3: Cross multiply
    243,779.81x = 365,736.99 × 101,691.87
  4. Step 4: Simplify right side
    243,779.81x = 37,192,478,822.62
  5. Step 5: Solve for x
    x = 37,192,478,822.62/243,779.81
  6. Step 6: Final answer
    x = 152,565.87

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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.