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Finding the Fourth Proportional to 393,228.27, 542,713.27 and 240,354.54

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Solution

The fourth proportional to 393,228.27, 542,713.27 and 240,354.54 is: 331,724.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,228.27 : 542,713.27 = 240,354.54 : x
  2. Step 2: Convert to fraction form
    393,228.27/542,713.27 = 240,354.54/x
  3. Step 3: Cross multiply
    393,228.27x = 542,713.27 × 240,354.54
  4. Step 4: Simplify right side
    393,228.27x = 130,443,598,362.75
  5. Step 5: Solve for x
    x = 130,443,598,362.75/393,228.27
  6. Step 6: Final answer
    x = 331,724.87

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1.5x scale

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.