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Finding the Fourth Proportional to 249,871.31, 344,825.12 and 136,691.63

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Solution

The fourth proportional to 249,871.31, 344,825.12 and 136,691.63 is: 188,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,871.31 : 344,825.12 = 136,691.63 : x
  2. Step 2: Convert to fraction form
    249,871.31/344,825.12 = 136,691.63/x
  3. Step 3: Cross multiply
    249,871.31x = 344,825.12 × 136,691.63
  4. Step 4: Simplify right side
    249,871.31x = 47,134,707,717.75
  5. Step 5: Solve for x
    x = 47,134,707,717.75/249,871.31
  6. Step 6: Final answer
    x = 188,635.93

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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.