Home / 230,184.28-317,631.60-128,206.32

Finding the Fourth Proportional to 230,184.28, 317,631.60 and 128,206.32

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Solution

The fourth proportional to 230,184.28, 317,631.60 and 128,206.32 is: 176,912.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,184.28 : 317,631.60 = 128,206.32 : x
  2. Step 2: Convert to fraction form
    230,184.28/317,631.60 = 128,206.32/x
  3. Step 3: Cross multiply
    230,184.28x = 317,631.60 × 128,206.32
  4. Step 4: Simplify right side
    230,184.28x = 40,722,378,551.71
  5. Step 5: Solve for x
    x = 40,722,378,551.71/230,184.28
  6. Step 6: Final answer
    x = 176,912.07

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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.