Home / 256,856.08-354,499-147,939.48

Finding the Fourth Proportional to 256,856.08, 354,499 and 147,939.48

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Solution

The fourth proportional to 256,856.08, 354,499 and 147,939.48 is: 204,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,856.08 : 354,499 = 147,939.48 : x
  2. Step 2: Convert to fraction form
    256,856.08/354,499 = 147,939.48/x
  3. Step 3: Cross multiply
    256,856.08x = 354,499 × 147,939.48
  4. Step 4: Simplify right side
    256,856.08x = 52,444,397,720.52
  5. Step 5: Solve for x
    x = 52,444,397,720.52/256,856.08
  6. Step 6: Final answer
    x = 204,178.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.