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Finding the Fourth Proportional to 151,419.70, 227,129.55 and 141,505.30

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Solution

The fourth proportional to 151,419.70, 227,129.55 and 141,505.30 is: 212,257.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,419.70 : 227,129.55 = 141,505.30 : x
  2. Step 2: Convert to fraction form
    151,419.70/227,129.55 = 141,505.30/x
  3. Step 3: Cross multiply
    151,419.70x = 227,129.55 × 141,505.30
  4. Step 4: Simplify right side
    151,419.70x = 32,140,035,111.62
  5. Step 5: Solve for x
    x = 32,140,035,111.62/151,419.70
  6. Step 6: Final answer
    x = 212,257.95

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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.