Home / 230,194.28-317,645.40-128,216.32

Finding the Fourth Proportional to 230,194.28, 317,645.40 and 128,216.32

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Solution

The fourth proportional to 230,194.28, 317,645.40 and 128,216.32 is: 176,925.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,194.28 : 317,645.40 = 128,216.32 : x
  2. Step 2: Convert to fraction form
    230,194.28/317,645.40 = 128,216.32/x
  3. Step 3: Cross multiply
    230,194.28x = 317,645.40 × 128,216.32
  4. Step 4: Simplify right side
    230,194.28x = 40,727,324,252.93
  5. Step 5: Solve for x
    x = 40,727,324,252.93/230,194.28
  6. Step 6: Final answer
    x = 176,925.87

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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.