Home / 230,928.55-318,675.20-128,951.17

Finding the Fourth Proportional to 230,928.55, 318,675.20 and 128,951.17

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Solution

The fourth proportional to 230,928.55, 318,675.20 and 128,951.17 is: 177,949.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,928.55 : 318,675.20 = 128,951.17 : x
  2. Step 2: Convert to fraction form
    230,928.55/318,675.20 = 128,951.17/x
  3. Step 3: Cross multiply
    230,928.55x = 318,675.20 × 128,951.17
  4. Step 4: Simplify right side
    230,928.55x = 41,093,538,448.54
  5. Step 5: Solve for x
    x = 41,093,538,448.54/230,928.55
  6. Step 6: Final answer
    x = 177,949.15

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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.