Home / 261,850.20-391,868.10-156,744.60

Finding the Fourth Proportional to 261,850.20, 391,868.10 and 156,744.60

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Solution

The fourth proportional to 261,850.20, 391,868.10 and 156,744.60 is: 234,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,850.20 : 391,868.10 = 156,744.60 : x
  2. Step 2: Convert to fraction form
    261,850.20/391,868.10 = 156,744.60/x
  3. Step 3: Cross multiply
    261,850.20x = 391,868.10 × 156,744.60
  4. Step 4: Simplify right side
    261,850.20x = 61,423,208,587.26
  5. Step 5: Solve for x
    x = 61,423,208,587.26/261,850.20
  6. Step 6: Final answer
    x = 234,573.85

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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.