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Finding the Fourth Proportional to 439,207.60, 658,908.60 and 202,493.20

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Solution

The fourth proportional to 439,207.60, 658,908.60 and 202,493.20 is: 303,784.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,207.60 : 658,908.60 = 202,493.20 : x
  2. Step 2: Convert to fraction form
    439,207.60/658,908.60 = 202,493.20/x
  3. Step 3: Cross multiply
    439,207.60x = 658,908.60 × 202,493.20
  4. Step 4: Simplify right side
    439,207.60x = 133,424,510,921.52
  5. Step 5: Solve for x
    x = 133,424,510,921.52/439,207.60
  6. Step 6: Final answer
    x = 303,784.61

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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.