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Finding the Fourth Proportional to 249,583.64, 344,424.82 and 136,407.20

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Solution

The fourth proportional to 249,583.64, 344,424.82 and 136,407.20 is: 188,241.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,583.64 : 344,424.82 = 136,407.20 : x
  2. Step 2: Convert to fraction form
    249,583.64/344,424.82 = 136,407.20/x
  3. Step 3: Cross multiply
    249,583.64x = 344,424.82 × 136,407.20
  4. Step 4: Simplify right side
    249,583.64x = 46,982,025,306.70
  5. Step 5: Solve for x
    x = 46,982,025,306.70/249,583.64
  6. Step 6: Final answer
    x = 188,241.61

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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.