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Finding the Fourth Proportional to 261,739.40, 392,025.90 and 226,747.40

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Solution

The fourth proportional to 261,739.40, 392,025.90 and 226,747.40 is: 339,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,739.40 : 392,025.90 = 226,747.40 : x
  2. Step 2: Convert to fraction form
    261,739.40/392,025.90 = 226,747.40/x
  3. Step 3: Cross multiply
    261,739.40x = 392,025.90 × 226,747.40
  4. Step 4: Simplify right side
    261,739.40x = 88,890,853,557.66
  5. Step 5: Solve for x
    x = 88,890,853,557.66/261,739.40
  6. Step 6: Final answer
    x = 339,615.87

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1.5x scale

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.