Home / 256,242.20-384,363.28-129,862.76

Finding the Fourth Proportional to 256,242.20, 384,363.28 and 129,862.76

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Solution

The fourth proportional to 256,242.20, 384,363.28 and 129,862.76 is: 194,794.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,242.20 : 384,363.28 = 129,862.76 : x
  2. Step 2: Convert to fraction form
    256,242.20/384,363.28 = 129,862.76/x
  3. Step 3: Cross multiply
    256,242.20x = 384,363.28 × 129,862.76
  4. Step 4: Simplify right side
    256,242.20x = 49,914,476,383.45
  5. Step 5: Solve for x
    x = 49,914,476,383.45/256,242.20
  6. Step 6: Final answer
    x = 194,794.13

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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.