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Finding the Fourth Proportional to 285,951.60, 428,648.56 and 136,151.62

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Solution

The fourth proportional to 285,951.60, 428,648.56 and 136,151.62 is: 204,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,951.60 : 428,648.56 = 136,151.62 : x
  2. Step 2: Convert to fraction form
    285,951.60/428,648.56 = 136,151.62/x
  3. Step 3: Cross multiply
    285,951.60x = 428,648.56 × 136,151.62
  4. Step 4: Simplify right side
    285,951.60x = 58,361,194,442.67
  5. Step 5: Solve for x
    x = 58,361,194,442.67/285,951.60
  6. Step 6: Final answer
    x = 204,094.66

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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.