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Finding the Fourth Proportional to 149,490.89, 207,187.94 and 146,691.53

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Solution

The fourth proportional to 149,490.89, 207,187.94 and 146,691.53 is: 203,308.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,490.89 : 207,187.94 = 146,691.53 : x
  2. Step 2: Convert to fraction form
    149,490.89/207,187.94 = 146,691.53/x
  3. Step 3: Cross multiply
    149,490.89x = 207,187.94 × 146,691.53
  4. Step 4: Simplify right side
    149,490.89x = 30,392,715,916.15
  5. Step 5: Solve for x
    x = 30,392,715,916.15/149,490.89
  6. Step 6: Final answer
    x = 203,308.15

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.