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Finding the Fourth Proportional to 249,901.82, 344,873.12 and 136,724.57

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Solution

The fourth proportional to 249,901.82, 344,873.12 and 136,724.57 is: 188,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,901.82 : 344,873.12 = 136,724.57 : x
  2. Step 2: Convert to fraction form
    249,901.82/344,873.12 = 136,724.57/x
  3. Step 3: Cross multiply
    249,901.82x = 344,873.12 × 136,724.57
  4. Step 4: Simplify right side
    249,901.82x = 47,152,626,628.57
  5. Step 5: Solve for x
    x = 47,152,626,628.57/249,901.82
  6. Step 6: Final answer
    x = 188,684.61

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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.