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Finding the Fourth Proportional to 256,200.88, 384,535.68 and 129,928.24

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Solution

The fourth proportional to 256,200.88, 384,535.68 and 129,928.24 is: 195,011.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,200.88 : 384,535.68 = 129,928.24 : x
  2. Step 2: Convert to fraction form
    256,200.88/384,535.68 = 129,928.24/x
  3. Step 3: Cross multiply
    256,200.88x = 384,535.68 × 129,928.24
  4. Step 4: Simplify right side
    256,200.88x = 49,962,044,119.60
  5. Step 5: Solve for x
    x = 49,962,044,119.60/256,200.88
  6. Step 6: Final answer
    x = 195,011.21

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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.