Home / 230,828.20-318,541.60-128,847.76

Finding the Fourth Proportional to 230,828.20, 318,541.60 and 128,847.76

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Solution

The fourth proportional to 230,828.20, 318,541.60 and 128,847.76 is: 177,809.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,828.20 : 318,541.60 = 128,847.76 : x
  2. Step 2: Convert to fraction form
    230,828.20/318,541.60 = 128,847.76/x
  3. Step 3: Cross multiply
    230,828.20x = 318,541.60 × 128,847.76
  4. Step 4: Simplify right side
    230,828.20x = 41,043,371,626.82
  5. Step 5: Solve for x
    x = 41,043,371,626.82/230,828.20
  6. Step 6: Final answer
    x = 177,809.17

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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.