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Finding the Fourth Proportional to 249,468.89, 374,198.02 and 80,988.95

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Solution

The fourth proportional to 249,468.89, 374,198.02 and 80,988.95 is: 121,481.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,468.89 : 374,198.02 = 80,988.95 : x
  2. Step 2: Convert to fraction form
    249,468.89/374,198.02 = 80,988.95/x
  3. Step 3: Cross multiply
    249,468.89x = 374,198.02 × 80,988.95
  4. Step 4: Simplify right side
    249,468.89x = 30,305,905,464.90
  5. Step 5: Solve for x
    x = 30,305,905,464.90/249,468.89
  6. Step 6: Final answer
    x = 121,481.70

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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.