Home / 486,928.28-730,392.45-131,942.30

Finding the Fourth Proportional to 486,928.28, 730,392.45 and 131,942.30

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Solution

The fourth proportional to 486,928.28, 730,392.45 and 131,942.30 is: 197,913.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,928.28 : 730,392.45 = 131,942.30 : x
  2. Step 2: Convert to fraction form
    486,928.28/730,392.45 = 131,942.30/x
  3. Step 3: Cross multiply
    486,928.28x = 730,392.45 × 131,942.30
  4. Step 4: Simplify right side
    486,928.28x = 96,369,661,581.62
  5. Step 5: Solve for x
    x = 96,369,661,581.62/486,928.28
  6. Step 6: Final answer
    x = 197,913.46

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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.