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Finding the Fourth Proportional to 230,023.20, 345,045.60 and 72,256.80

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Solution

The fourth proportional to 230,023.20, 345,045.60 and 72,256.80 is: 108,388.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,023.20 : 345,045.60 = 72,256.80 : x
  2. Step 2: Convert to fraction form
    230,023.20/345,045.60 = 72,256.80/x
  3. Step 3: Cross multiply
    230,023.20x = 345,045.60 × 72,256.80
  4. Step 4: Simplify right side
    230,023.20x = 24,931,890,910.08
  5. Step 5: Solve for x
    x = 24,931,890,910.08/230,023.20
  6. Step 6: Final answer
    x = 108,388.59

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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.