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Finding the Fourth Proportional to 249,197.80, 343,892.98 and 136,020.56

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Solution

The fourth proportional to 249,197.80, 343,892.98 and 136,020.56 is: 187,708.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,197.80 : 343,892.98 = 136,020.56 : x
  2. Step 2: Convert to fraction form
    249,197.80/343,892.98 = 136,020.56/x
  3. Step 3: Cross multiply
    249,197.80x = 343,892.98 × 136,020.56
  4. Step 4: Simplify right side
    249,197.80x = 46,776,515,719.67
  5. Step 5: Solve for x
    x = 46,776,515,719.67/249,197.80
  6. Step 6: Final answer
    x = 187,708.38

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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.