Home / 230,798.15-318,500.26-128,817.73

Finding the Fourth Proportional to 230,798.15, 318,500.26 and 128,817.73

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Solution

The fourth proportional to 230,798.15, 318,500.26 and 128,817.73 is: 177,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,798.15 : 318,500.26 = 128,817.73 : x
  2. Step 2: Convert to fraction form
    230,798.15/318,500.26 = 128,817.73/x
  3. Step 3: Cross multiply
    230,798.15x = 318,500.26 × 128,817.73
  4. Step 4: Simplify right side
    230,798.15x = 41,028,480,497.61
  5. Step 5: Solve for x
    x = 41,028,480,497.61/230,798.15
  6. Step 6: Final answer
    x = 177,767.80

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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.