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Finding the Fourth Proportional to 397,182.59, 548,237.36 and 253,943.20

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Solution

The fourth proportional to 397,182.59, 548,237.36 and 253,943.20 is: 350,521.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,182.59 : 548,237.36 = 253,943.20 : x
  2. Step 2: Convert to fraction form
    397,182.59/548,237.36 = 253,943.20/x
  3. Step 3: Cross multiply
    397,182.59x = 548,237.36 × 253,943.20
  4. Step 4: Simplify right side
    397,182.59x = 139,221,149,557.95
  5. Step 5: Solve for x
    x = 139,221,149,557.95/397,182.59
  6. Step 6: Final answer
    x = 350,521.78

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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.