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Finding the Fourth Proportional to 249,382.74, 374,126.62 and 80,889.88

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Solution

The fourth proportional to 249,382.74, 374,126.62 and 80,889.88 is: 121,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,382.74 : 374,126.62 = 80,889.88 : x
  2. Step 2: Convert to fraction form
    249,382.74/374,126.62 = 80,889.88/x
  3. Step 3: Cross multiply
    249,382.74x = 374,126.62 × 80,889.88
  4. Step 4: Simplify right side
    249,382.74x = 30,263,057,396.61
  5. Step 5: Solve for x
    x = 30,263,057,396.61/249,382.74
  6. Step 6: Final answer
    x = 121,351.85

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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.