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Finding the Fourth Proportional to 230,000.30, 345,000.45 and 72,244.70

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Solution

The fourth proportional to 230,000.30, 345,000.45 and 72,244.70 is: 108,367.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,000.30 : 345,000.45 = 72,244.70 : x
  2. Step 2: Convert to fraction form
    230,000.30/345,000.45 = 72,244.70/x
  3. Step 3: Cross multiply
    230,000.30x = 345,000.45 × 72,244.70
  4. Step 4: Simplify right side
    230,000.30x = 24,924,454,010.12
  5. Step 5: Solve for x
    x = 24,924,454,010.12/230,000.30
  6. Step 6: Final answer
    x = 108,367.05

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1.5x scale

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.