Home / 222,256.08-306,711-120,279.30

Finding the Fourth Proportional to 222,256.08, 306,711 and 120,279.30

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Solution

The fourth proportional to 222,256.08, 306,711 and 120,279.30 is: 165,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,256.08 : 306,711 = 120,279.30 : x
  2. Step 2: Convert to fraction form
    222,256.08/306,711 = 120,279.30/x
  3. Step 3: Cross multiply
    222,256.08x = 306,711 × 120,279.30
  4. Step 4: Simplify right side
    222,256.08x = 36,890,984,382.30
  5. Step 5: Solve for x
    x = 36,890,984,382.30/222,256.08
  6. Step 6: Final answer
    x = 165,984.14

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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.