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Finding the Fourth Proportional to 243,639.36, 365,414.49 and 110,487.51

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Solution

The fourth proportional to 243,639.36, 365,414.49 and 110,487.51 is: 165,711.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,639.36 : 365,414.49 = 110,487.51 : x
  2. Step 2: Convert to fraction form
    243,639.36/365,414.49 = 110,487.51/x
  3. Step 3: Cross multiply
    243,639.36x = 365,414.49 × 110,487.51
  4. Step 4: Simplify right side
    243,639.36x = 40,373,737,118.02
  5. Step 5: Solve for x
    x = 40,373,737,118.02/243,639.36
  6. Step 6: Final answer
    x = 165,711.06

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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.