Home / 222,212.30-306,651.98-120,239.55

Finding the Fourth Proportional to 222,212.30, 306,651.98 and 120,239.55

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Solution

The fourth proportional to 222,212.30, 306,651.98 and 120,239.55 is: 165,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,212.30 : 306,651.98 = 120,239.55 : x
  2. Step 2: Convert to fraction form
    222,212.30/306,651.98 = 120,239.55/x
  3. Step 3: Cross multiply
    222,212.30x = 306,651.98 × 120,239.55
  4. Step 4: Simplify right side
    222,212.30x = 36,871,695,480.61
  5. Step 5: Solve for x
    x = 36,871,695,480.61/222,212.30
  6. Step 6: Final answer
    x = 165,930.04

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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.