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Finding the Fourth Proportional to 324,523.20, 486,784.80 and 235,358.40

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Solution

The fourth proportional to 324,523.20, 486,784.80 and 235,358.40 is: 353,037.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,523.20 : 486,784.80 = 235,358.40 : x
  2. Step 2: Convert to fraction form
    324,523.20/486,784.80 = 235,358.40/x
  3. Step 3: Cross multiply
    324,523.20x = 486,784.80 × 235,358.40
  4. Step 4: Simplify right side
    324,523.20x = 114,568,891,672.32
  5. Step 5: Solve for x
    x = 114,568,891,672.32/324,523.20
  6. Step 6: Final answer
    x = 353,037.60

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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.