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Finding the Fourth Proportional to 240,909.84, 361,422.18 and 83,139.66

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Solution

The fourth proportional to 240,909.84, 361,422.18 and 83,139.66 is: 124,729.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,909.84 : 361,422.18 = 83,139.66 : x
  2. Step 2: Convert to fraction form
    240,909.84/361,422.18 = 83,139.66/x
  3. Step 3: Cross multiply
    240,909.84x = 361,422.18 × 83,139.66
  4. Step 4: Simplify right side
    240,909.84x = 30,048,517,161.66
  5. Step 5: Solve for x
    x = 30,048,517,161.66/240,909.84
  6. Step 6: Final answer
    x = 124,729.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.