Home / 256,188.27-384,516.79-129,915.66

Finding the Fourth Proportional to 256,188.27, 384,516.79 and 129,915.66

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Solution

The fourth proportional to 256,188.27, 384,516.79 and 129,915.66 is: 194,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,188.27 : 384,516.79 = 129,915.66 : x
  2. Step 2: Convert to fraction form
    256,188.27/384,516.79 = 129,915.66/x
  3. Step 3: Cross multiply
    256,188.27x = 384,516.79 × 129,915.66
  4. Step 4: Simplify right side
    256,188.27x = 49,954,752,229.14
  5. Step 5: Solve for x
    x = 49,954,752,229.14/256,188.27
  6. Step 6: Final answer
    x = 194,992.35

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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.