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Finding the Fourth Proportional to 398,652.30, 550,273.48 and 237,557.88

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Solution

The fourth proportional to 398,652.30, 550,273.48 and 237,557.88 is: 327,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,652.30 : 550,273.48 = 237,557.88 : x
  2. Step 2: Convert to fraction form
    398,652.30/550,273.48 = 237,557.88/x
  3. Step 3: Cross multiply
    398,652.30x = 550,273.48 × 237,557.88
  4. Step 4: Simplify right side
    398,652.30x = 130,721,801,329.02
  5. Step 5: Solve for x
    x = 130,721,801,329.02/398,652.30
  6. Step 6: Final answer
    x = 327,909.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.