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Finding the Fourth Proportional to 181,505.80, 272,258.70 and 131,350.60

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Solution

The fourth proportional to 181,505.80, 272,258.70 and 131,350.60 is: 197,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,505.80 : 272,258.70 = 131,350.60 : x
  2. Step 2: Convert to fraction form
    181,505.80/272,258.70 = 131,350.60/x
  3. Step 3: Cross multiply
    181,505.80x = 272,258.70 × 131,350.60
  4. Step 4: Simplify right side
    181,505.80x = 35,761,343,600.22
  5. Step 5: Solve for x
    x = 35,761,343,600.22/181,505.80
  6. Step 6: Final answer
    x = 197,025.90

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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.