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Finding the Fourth Proportional to 439,680.60, 659,010.60 and 203,047.20

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Solution

The fourth proportional to 439,680.60, 659,010.60 and 203,047.20 is: 304,335.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,680.60 : 659,010.60 = 203,047.20 : x
  2. Step 2: Convert to fraction form
    439,680.60/659,010.60 = 203,047.20/x
  3. Step 3: Cross multiply
    439,680.60x = 659,010.60 × 203,047.20
  4. Step 4: Simplify right side
    439,680.60x = 133,810,257,100.32
  5. Step 5: Solve for x
    x = 133,810,257,100.32/439,680.60
  6. Step 6: Final answer
    x = 304,335.14

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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.