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Finding the Fourth Proportional to 281,909.66, 422,759.12 and 113,373.05

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Solution

The fourth proportional to 281,909.66, 422,759.12 and 113,373.05 is: 170,017.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,909.66 : 422,759.12 = 113,373.05 : x
  2. Step 2: Convert to fraction form
    281,909.66/422,759.12 = 113,373.05/x
  3. Step 3: Cross multiply
    281,909.66x = 422,759.12 × 113,373.05
  4. Step 4: Simplify right side
    281,909.66x = 47,929,488,169.06
  5. Step 5: Solve for x
    x = 47,929,488,169.06/281,909.66
  6. Step 6: Final answer
    x = 170,017.19

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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.