Home / 230,212.20-345,356.10-72,402.60

Finding the Fourth Proportional to 230,212.20, 345,356.10 and 72,402.60

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Solution

The fourth proportional to 230,212.20, 345,356.10 and 72,402.60 is: 108,615.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,212.20 : 345,356.10 = 72,402.60 : x
  2. Step 2: Convert to fraction form
    230,212.20/345,356.10 = 72,402.60/x
  3. Step 3: Cross multiply
    230,212.20x = 345,356.10 × 72,402.60
  4. Step 4: Simplify right side
    230,212.20x = 25,004,679,565.86
  5. Step 5: Solve for x
    x = 25,004,679,565.86/230,212.20
  6. Step 6: Final answer
    x = 108,615.79

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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.