Home / 256,966.27-385,447.17-200,853.52

Finding the Fourth Proportional to 256,966.27, 385,447.17 and 200,853.52

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Solution

The fourth proportional to 256,966.27, 385,447.17 and 200,853.52 is: 301,278.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,966.27 : 385,447.17 = 200,853.52 : x
  2. Step 2: Convert to fraction form
    256,966.27/385,447.17 = 200,853.52/x
  3. Step 3: Cross multiply
    256,966.27x = 385,447.17 × 200,853.52
  4. Step 4: Simplify right side
    256,966.27x = 77,418,420,658.12
  5. Step 5: Solve for x
    x = 77,418,420,658.12/256,966.27
  6. Step 6: Final answer
    x = 301,278.54

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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.