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Finding the Fourth Proportional to 249,591.97, 344,472.78 and 142,172.20

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Solution

The fourth proportional to 249,591.97, 344,472.78 and 142,172.20 is: 196,218.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,591.97 : 344,472.78 = 142,172.20 : x
  2. Step 2: Convert to fraction form
    249,591.97/344,472.78 = 142,172.20/x
  3. Step 3: Cross multiply
    249,591.97x = 344,472.78 × 142,172.20
  4. Step 4: Simplify right side
    249,591.97x = 48,974,452,972.72
  5. Step 5: Solve for x
    x = 48,974,452,972.72/249,591.97
  6. Step 6: Final answer
    x = 196,218.06

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1.5x scale

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.