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Finding the Fourth Proportional to 247,661.60, 371,414.60 and 105,505.38

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Solution

The fourth proportional to 247,661.60, 371,414.60 and 105,505.38 is: 158,224.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,661.60 : 371,414.60 = 105,505.38 : x
  2. Step 2: Convert to fraction form
    247,661.60/371,414.60 = 105,505.38/x
  3. Step 3: Cross multiply
    247,661.60x = 371,414.60 × 105,505.38
  4. Step 4: Simplify right side
    247,661.60x = 39,186,238,510.55
  5. Step 5: Solve for x
    x = 39,186,238,510.55/247,661.60
  6. Step 6: Final answer
    x = 158,224.93

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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.