Home / 256,834.67-354,400.78-147,974.61

Finding the Fourth Proportional to 256,834.67, 354,400.78 and 147,974.61

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Solution

The fourth proportional to 256,834.67, 354,400.78 and 147,974.61 is: 204,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,834.67 : 354,400.78 = 147,974.61 : x
  2. Step 2: Convert to fraction form
    256,834.67/354,400.78 = 147,974.61/x
  3. Step 3: Cross multiply
    256,834.67x = 354,400.78 × 147,974.61
  4. Step 4: Simplify right side
    256,834.67x = 52,442,318,090.20
  5. Step 5: Solve for x
    x = 52,442,318,090.20/256,834.67
  6. Step 6: Final answer
    x = 204,187.07

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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.