Home / 256,118.55-384,177.83-131,702.55

Finding the Fourth Proportional to 256,118.55, 384,177.83 and 131,702.55

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Solution

The fourth proportional to 256,118.55, 384,177.83 and 131,702.55 is: 197,553.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,118.55 : 384,177.83 = 131,702.55 : x
  2. Step 2: Convert to fraction form
    256,118.55/384,177.83 = 131,702.55/x
  3. Step 3: Cross multiply
    256,118.55x = 384,177.83 × 131,702.55
  4. Step 4: Simplify right side
    256,118.55x = 50,597,199,205.95
  5. Step 5: Solve for x
    x = 50,597,199,205.95/256,118.55
  6. Step 6: Final answer
    x = 197,553.83

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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.