Home / 397,702.12-596,466.78-131,399.56

Finding the Fourth Proportional to 397,702.12, 596,466.78 and 131,399.56

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Solution

The fourth proportional to 397,702.12, 596,466.78 and 131,399.56 is: 197,070.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,702.12 : 596,466.78 = 131,399.56 : x
  2. Step 2: Convert to fraction form
    397,702.12/596,466.78 = 131,399.56/x
  3. Step 3: Cross multiply
    397,702.12x = 596,466.78 × 131,399.56
  4. Step 4: Simplify right side
    397,702.12x = 78,375,472,446.62
  5. Step 5: Solve for x
    x = 78,375,472,446.62/397,702.12
  6. Step 6: Final answer
    x = 197,070.79

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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.