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Finding the Fourth Proportional to 243,473.86, 365,229.17 and 72,682.11

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Solution

The fourth proportional to 243,473.86, 365,229.17 and 72,682.11 is: 109,028.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,473.86 : 365,229.17 = 72,682.11 : x
  2. Step 2: Convert to fraction form
    243,473.86/365,229.17 = 72,682.11/x
  3. Step 3: Cross multiply
    243,473.86x = 365,229.17 × 72,682.11
  4. Step 4: Simplify right side
    243,473.86x = 26,545,624,519.59
  5. Step 5: Solve for x
    x = 26,545,624,519.59/243,473.86
  6. Step 6: Final answer
    x = 109,028.65

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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.