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Finding the Fourth Proportional to 249,165, 343,857.18 and 141,744.84

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Solution

The fourth proportional to 249,165, 343,857.18 and 141,744.84 is: 195,613.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,165 : 343,857.18 = 141,744.84 : x
  2. Step 2: Convert to fraction form
    249,165/343,857.18 = 141,744.84/x
  3. Step 3: Cross multiply
    249,165x = 343,857.18 × 141,744.84
  4. Step 4: Simplify right side
    249,165x = 48,739,980,961.95
  5. Step 5: Solve for x
    x = 48,739,980,961.95/249,165
  6. Step 6: Final answer
    x = 195,613.27

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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.