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Finding the Fourth Proportional to 229,995.90, 345,008.39 and 72,230.58

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Solution

The fourth proportional to 229,995.90, 345,008.39 and 72,230.58 is: 108,350.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,995.90 : 345,008.39 = 72,230.58 : x
  2. Step 2: Convert to fraction form
    229,995.90/345,008.39 = 72,230.58/x
  3. Step 3: Cross multiply
    229,995.90x = 345,008.39 × 72,230.58
  4. Step 4: Simplify right side
    229,995.90x = 24,920,155,753.41
  5. Step 5: Solve for x
    x = 24,920,155,753.41/229,995.90
  6. Step 6: Final answer
    x = 108,350.43

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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.