Home / 229,012.40-343,520.79-86,819.43

Finding the Fourth Proportional to 229,012.40, 343,520.79 and 86,819.43

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Solution

The fourth proportional to 229,012.40, 343,520.79 and 86,819.43 is: 130,229.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,012.40 : 343,520.79 = 86,819.43 : x
  2. Step 2: Convert to fraction form
    229,012.40/343,520.79 = 86,819.43/x
  3. Step 3: Cross multiply
    229,012.40x = 343,520.79 × 86,819.43
  4. Step 4: Simplify right side
    229,012.40x = 29,824,279,180.95
  5. Step 5: Solve for x
    x = 29,824,279,180.95/229,012.40
  6. Step 6: Final answer
    x = 130,229.98

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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.