Home / 256,919.43-385,520.18-130,570.57

Finding the Fourth Proportional to 256,919.43, 385,520.18 and 130,570.57

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Solution

The fourth proportional to 256,919.43, 385,520.18 and 130,570.57 is: 195,927.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,919.43 : 385,520.18 = 130,570.57 : x
  2. Step 2: Convert to fraction form
    256,919.43/385,520.18 = 130,570.57/x
  3. Step 3: Cross multiply
    256,919.43x = 385,520.18 × 130,570.57
  4. Step 4: Simplify right side
    256,919.43x = 50,337,589,649.10
  5. Step 5: Solve for x
    x = 50,337,589,649.10/256,919.43
  6. Step 6: Final answer
    x = 195,927.53

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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.