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Finding the Fourth Proportional to 230,809, 318,517.38 and 124,825

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Solution

The fourth proportional to 230,809, 318,517.38 and 124,825 is: 172,259.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,809 : 318,517.38 = 124,825 : x
  2. Step 2: Convert to fraction form
    230,809/318,517.38 = 124,825/x
  3. Step 3: Cross multiply
    230,809x = 318,517.38 × 124,825
  4. Step 4: Simplify right side
    230,809x = 39,758,931,958.50
  5. Step 5: Solve for x
    x = 39,758,931,958.50/230,809
  6. Step 6: Final answer
    x = 172,259.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.