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Finding the Fourth Proportional to 504,211.20, 756,318.30 and 130,234.20

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Solution

The fourth proportional to 504,211.20, 756,318.30 and 130,234.20 is: 195,351.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,211.20 : 756,318.30 = 130,234.20 : x
  2. Step 2: Convert to fraction form
    504,211.20/756,318.30 = 130,234.20/x
  3. Step 3: Cross multiply
    504,211.20x = 756,318.30 × 130,234.20
  4. Step 4: Simplify right side
    504,211.20x = 98,498,508,745.86
  5. Step 5: Solve for x
    x = 98,498,508,745.86/504,211.20
  6. Step 6: Final answer
    x = 195,351.69

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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.