Home / 261,601.26-392,635.17-121,438.86

Finding the Fourth Proportional to 261,601.26, 392,635.17 and 121,438.86

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Solution

The fourth proportional to 261,601.26, 392,635.17 and 121,438.86 is: 182,266.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,601.26 : 392,635.17 = 121,438.86 : x
  2. Step 2: Convert to fraction form
    261,601.26/392,635.17 = 121,438.86/x
  3. Step 3: Cross multiply
    261,601.26x = 392,635.17 × 121,438.86
  4. Step 4: Simplify right side
    261,601.26x = 47,681,167,440.71
  5. Step 5: Solve for x
    x = 47,681,167,440.71/261,601.26
  6. Step 6: Final answer
    x = 182,266.58

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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.