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Finding the Fourth Proportional to 161,551.47, 242,414.70 and 155,661.15

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Solution

The fourth proportional to 161,551.47, 242,414.70 and 155,661.15 is: 233,576.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,551.47 : 242,414.70 = 155,661.15 : x
  2. Step 2: Convert to fraction form
    161,551.47/242,414.70 = 155,661.15/x
  3. Step 3: Cross multiply
    161,551.47x = 242,414.70 × 155,661.15
  4. Step 4: Simplify right side
    161,551.47x = 37,734,550,978.91
  5. Step 5: Solve for x
    x = 37,734,550,978.91/161,551.47
  6. Step 6: Final answer
    x = 233,576.03

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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.