Home / 222,220.25-333,365-72,425.78

Finding the Fourth Proportional to 222,220.25, 333,365 and 72,425.78

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Solution

The fourth proportional to 222,220.25, 333,365 and 72,425.78 is: 108,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,220.25 : 333,365 = 72,425.78 : x
  2. Step 2: Convert to fraction form
    222,220.25/333,365 = 72,425.78/x
  3. Step 3: Cross multiply
    222,220.25x = 333,365 × 72,425.78
  4. Step 4: Simplify right side
    222,220.25x = 24,144,220,149.70
  5. Step 5: Solve for x
    x = 24,144,220,149.70/222,220.25
  6. Step 6: Final answer
    x = 108,649.95

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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.