Home / 261,635.07-392,460.30-72,098.31

Finding the Fourth Proportional to 261,635.07, 392,460.30 and 72,098.31

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Solution

The fourth proportional to 261,635.07, 392,460.30 and 72,098.31 is: 108,149.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,635.07 : 392,460.30 = 72,098.31 : x
  2. Step 2: Convert to fraction form
    261,635.07/392,460.30 = 72,098.31/x
  3. Step 3: Cross multiply
    261,635.07x = 392,460.30 × 72,098.31
  4. Step 4: Simplify right side
    261,635.07x = 28,295,724,372.09
  5. Step 5: Solve for x
    x = 28,295,724,372.09/261,635.07
  6. Step 6: Final answer
    x = 108,149.59

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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.