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Finding the Fourth Proportional to 489,250.68, 675,200.22 and 271,530.60

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Solution

The fourth proportional to 489,250.68, 675,200.22 and 271,530.60 is: 374,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,250.68 : 675,200.22 = 271,530.60 : x
  2. Step 2: Convert to fraction form
    489,250.68/675,200.22 = 271,530.60/x
  3. Step 3: Cross multiply
    489,250.68x = 675,200.22 × 271,530.60
  4. Step 4: Simplify right side
    489,250.68x = 183,337,520,856.73
  5. Step 5: Solve for x
    x = 183,337,520,856.73/489,250.68
  6. Step 6: Final answer
    x = 374,731.25

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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.