Home / 261,433.46-392,109.18-71,908.04

Finding the Fourth Proportional to 261,433.46, 392,109.18 and 71,908.04

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Solution

The fourth proportional to 261,433.46, 392,109.18 and 71,908.04 is: 107,850.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,433.46 : 392,109.18 = 71,908.04 : x
  2. Step 2: Convert to fraction form
    261,433.46/392,109.18 = 71,908.04/x
  3. Step 3: Cross multiply
    261,433.46x = 392,109.18 × 71,908.04
  4. Step 4: Simplify right side
    261,433.46x = 28,195,800,639.26
  5. Step 5: Solve for x
    x = 28,195,800,639.26/261,433.46
  6. Step 6: Final answer
    x = 107,850.77

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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.