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Finding the Fourth Proportional to 392,598.60, 541,745.38 and 220,535.88

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Solution

The fourth proportional to 392,598.60, 541,745.38 and 220,535.88 is: 304,316.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,598.60 : 541,745.38 = 220,535.88 : x
  2. Step 2: Convert to fraction form
    392,598.60/541,745.38 = 220,535.88/x
  3. Step 3: Cross multiply
    392,598.60x = 541,745.38 × 220,535.88
  4. Step 4: Simplify right side
    392,598.60x = 119,474,294,114.23
  5. Step 5: Solve for x
    x = 119,474,294,114.23/392,598.60
  6. Step 6: Final answer
    x = 304,316.66

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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.