Home / 254,764.90-382,147.35-128,793.70

Finding the Fourth Proportional to 254,764.90, 382,147.35 and 128,793.70

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Solution

The fourth proportional to 254,764.90, 382,147.35 and 128,793.70 is: 193,190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,764.90 : 382,147.35 = 128,793.70 : x
  2. Step 2: Convert to fraction form
    254,764.90/382,147.35 = 128,793.70/x
  3. Step 3: Cross multiply
    254,764.90x = 382,147.35 × 128,793.70
  4. Step 4: Simplify right side
    254,764.90x = 49,218,171,151.70
  5. Step 5: Solve for x
    x = 49,218,171,151.70/254,764.90
  6. Step 6: Final answer
    x = 193,190.55

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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.