Home / 218,501.32-327,758.46-85,376.20

Finding the Fourth Proportional to 218,501.32, 327,758.46 and 85,376.20

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Solution

The fourth proportional to 218,501.32, 327,758.46 and 85,376.20 is: 128,066.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,501.32 : 327,758.46 = 85,376.20 : x
  2. Step 2: Convert to fraction form
    218,501.32/327,758.46 = 85,376.20/x
  3. Step 3: Cross multiply
    218,501.32x = 327,758.46 × 85,376.20
  4. Step 4: Simplify right side
    218,501.32x = 27,982,771,832.65
  5. Step 5: Solve for x
    x = 27,982,771,832.65/218,501.32
  6. Step 6: Final answer
    x = 128,066.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.