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Finding the Fourth Proportional to 247,140.28, 341,053.24 and 133,963

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Solution

The fourth proportional to 247,140.28, 341,053.24 and 133,963 is: 184,868.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,140.28 : 341,053.24 = 133,963 : x
  2. Step 2: Convert to fraction form
    247,140.28/341,053.24 = 133,963/x
  3. Step 3: Cross multiply
    247,140.28x = 341,053.24 × 133,963
  4. Step 4: Simplify right side
    247,140.28x = 45,688,515,190.12
  5. Step 5: Solve for x
    x = 45,688,515,190.12/247,140.28
  6. Step 6: Final answer
    x = 184,868.75

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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.