Home / 281,454.62-422,179.28-121,643.55

Finding the Fourth Proportional to 281,454.62, 422,179.28 and 121,643.55

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Solution

The fourth proportional to 281,454.62, 422,179.28 and 121,643.55 is: 182,464.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,454.62 : 422,179.28 = 121,643.55 : x
  2. Step 2: Convert to fraction form
    281,454.62/422,179.28 = 121,643.55/x
  3. Step 3: Cross multiply
    281,454.62x = 422,179.28 × 121,643.55
  4. Step 4: Simplify right side
    281,454.62x = 51,355,385,747.43
  5. Step 5: Solve for x
    x = 51,355,385,747.43/281,454.62
  6. Step 6: Final answer
    x = 182,464.18

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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.