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Finding the Fourth Proportional to 249,331, 344,101.68 and 148,729

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Solution

The fourth proportional to 249,331, 344,101.68 and 148,729 is: 205,260.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,331 : 344,101.68 = 148,729 : x
  2. Step 2: Convert to fraction form
    249,331/344,101.68 = 148,729/x
  3. Step 3: Cross multiply
    249,331x = 344,101.68 × 148,729
  4. Step 4: Simplify right side
    249,331x = 51,177,898,764.72
  5. Step 5: Solve for x
    x = 51,177,898,764.72/249,331
  6. Step 6: Final answer
    x = 205,260.87

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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.