Home / 222,211.91-306,651.45-120,239.18

Finding the Fourth Proportional to 222,211.91, 306,651.45 and 120,239.18

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Solution

The fourth proportional to 222,211.91, 306,651.45 and 120,239.18 is: 165,929.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,211.91 : 306,651.45 = 120,239.18 : x
  2. Step 2: Convert to fraction form
    222,211.91/306,651.45 = 120,239.18/x
  3. Step 3: Cross multiply
    222,211.91x = 306,651.45 × 120,239.18
  4. Step 4: Simplify right side
    222,211.91x = 36,871,518,961.39
  5. Step 5: Solve for x
    x = 36,871,518,961.39/222,211.91
  6. Step 6: Final answer
    x = 165,929.53

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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.