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Finding the Fourth Proportional to 240,681.50, 332,175.44 and 138,687.11

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Solution

The fourth proportional to 240,681.50, 332,175.44 and 138,687.11 is: 191,408.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,681.50 : 332,175.44 = 138,687.11 : x
  2. Step 2: Convert to fraction form
    240,681.50/332,175.44 = 138,687.11/x
  3. Step 3: Cross multiply
    240,681.50x = 332,175.44 × 138,687.11
  4. Step 4: Simplify right side
    240,681.50x = 46,068,449,432.27
  5. Step 5: Solve for x
    x = 46,068,449,432.27/240,681.50
  6. Step 6: Final answer
    x = 191,408.36

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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.