Home / 230,864.76-318,591.18-128,883.69

Finding the Fourth Proportional to 230,864.76, 318,591.18 and 128,883.69

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Solution

The fourth proportional to 230,864.76, 318,591.18 and 128,883.69 is: 177,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,864.76 : 318,591.18 = 128,883.69 : x
  2. Step 2: Convert to fraction form
    230,864.76/318,591.18 = 128,883.69/x
  3. Step 3: Cross multiply
    230,864.76x = 318,591.18 × 128,883.69
  4. Step 4: Simplify right side
    230,864.76x = 41,061,206,879.85
  5. Step 5: Solve for x
    x = 41,061,206,879.85/230,864.76
  6. Step 6: Final answer
    x = 177,858.27

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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.