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Finding the Fourth Proportional to 229,819.64, 344,729.45 and 72,060.80

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Solution

The fourth proportional to 229,819.64, 344,729.45 and 72,060.80 is: 108,091.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,819.64 : 344,729.45 = 72,060.80 : x
  2. Step 2: Convert to fraction form
    229,819.64/344,729.45 = 72,060.80/x
  3. Step 3: Cross multiply
    229,819.64x = 344,729.45 × 72,060.80
  4. Step 4: Simplify right side
    229,819.64x = 24,841,477,866.61
  5. Step 5: Solve for x
    x = 24,841,477,866.61/229,819.64
  6. Step 6: Final answer
    x = 108,091.19

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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.