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Finding the Fourth Proportional to 240,290.66, 331,592.97 and 138,301.97

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Solution

The fourth proportional to 240,290.66, 331,592.97 and 138,301.97 is: 190,852.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,290.66 : 331,592.97 = 138,301.97 : x
  2. Step 2: Convert to fraction form
    240,290.66/331,592.97 = 138,301.97/x
  3. Step 3: Cross multiply
    240,290.66x = 331,592.97 × 138,301.97
  4. Step 4: Simplify right side
    240,290.66x = 45,859,960,989.15
  5. Step 5: Solve for x
    x = 45,859,960,989.15/240,290.66
  6. Step 6: Final answer
    x = 190,852.03

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1.5x scale

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.