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Finding the Fourth Proportional to 324,069.10, 486,103.65 and 113,728.30

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Solution

The fourth proportional to 324,069.10, 486,103.65 and 113,728.30 is: 170,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,069.10 : 486,103.65 = 113,728.30 : x
  2. Step 2: Convert to fraction form
    324,069.10/486,103.65 = 113,728.30/x
  3. Step 3: Cross multiply
    324,069.10x = 486,103.65 × 113,728.30
  4. Step 4: Simplify right side
    324,069.10x = 55,283,741,738.30
  5. Step 5: Solve for x
    x = 55,283,741,738.30/324,069.10
  6. Step 6: Final answer
    x = 170,592.45

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Similar ratio
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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.