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Finding the Fourth Proportional to 249,211.82, 343,912.22 and 136,034.57

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Solution

The fourth proportional to 249,211.82, 343,912.22 and 136,034.57 is: 187,727.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,211.82 : 343,912.22 = 136,034.57 : x
  2. Step 2: Convert to fraction form
    249,211.82/343,912.22 = 136,034.57/x
  3. Step 3: Cross multiply
    249,211.82x = 343,912.22 × 136,034.57
  4. Step 4: Simplify right side
    249,211.82x = 46,783,948,565.71
  5. Step 5: Solve for x
    x = 46,783,948,565.71/249,211.82
  6. Step 6: Final answer
    x = 187,727.65

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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.