Home / 256,061.28-384,037.20-98,234.40

Finding the Fourth Proportional to 256,061.28, 384,037.20 and 98,234.40

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Solution

The fourth proportional to 256,061.28, 384,037.20 and 98,234.40 is: 147,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,061.28 : 384,037.20 = 98,234.40 : x
  2. Step 2: Convert to fraction form
    256,061.28/384,037.20 = 98,234.40/x
  3. Step 3: Cross multiply
    256,061.28x = 384,037.20 × 98,234.40
  4. Step 4: Simplify right side
    256,061.28x = 37,725,663,919.68
  5. Step 5: Solve for x
    x = 37,725,663,919.68/256,061.28
  6. Step 6: Final answer
    x = 147,330.61

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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.