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Finding the Fourth Proportional to 437,687.20, 656,530.80 and 227,735.20

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Solution

The fourth proportional to 437,687.20, 656,530.80 and 227,735.20 is: 341,602.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,687.20 : 656,530.80 = 227,735.20 : x
  2. Step 2: Convert to fraction form
    437,687.20/656,530.80 = 227,735.20/x
  3. Step 3: Cross multiply
    437,687.20x = 656,530.80 × 227,735.20
  4. Step 4: Simplify right side
    437,687.20x = 149,515,173,044.16
  5. Step 5: Solve for x
    x = 149,515,173,044.16/437,687.20
  6. Step 6: Final answer
    x = 341,602.80

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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.