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Finding the Fourth Proportional to 247,142.86, 341,048 and 133,963.18

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Solution

The fourth proportional to 247,142.86, 341,048 and 133,963.18 is: 184,864.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,142.86 : 341,048 = 133,963.18 : x
  2. Step 2: Convert to fraction form
    247,142.86/341,048 = 133,963.18/x
  3. Step 3: Cross multiply
    247,142.86x = 341,048 × 133,963.18
  4. Step 4: Simplify right side
    247,142.86x = 45,687,874,612.64
  5. Step 5: Solve for x
    x = 45,687,874,612.64/247,142.86
  6. Step 6: Final answer
    x = 184,864.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.