Home / 220,805.40-331,208.10-132,331.80

Finding the Fourth Proportional to 220,805.40, 331,208.10 and 132,331.80

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Solution

The fourth proportional to 220,805.40, 331,208.10 and 132,331.80 is: 198,497.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,805.40 : 331,208.10 = 132,331.80 : x
  2. Step 2: Convert to fraction form
    220,805.40/331,208.10 = 132,331.80/x
  3. Step 3: Cross multiply
    220,805.40x = 331,208.10 × 132,331.80
  4. Step 4: Simplify right side
    220,805.40x = 43,829,364,047.58
  5. Step 5: Solve for x
    x = 43,829,364,047.58/220,805.40
  6. Step 6: Final answer
    x = 198,497.70

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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.