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Finding the Fourth Proportional to 217,145.84, 325,765.56 and 67,382.96

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Solution

The fourth proportional to 217,145.84, 325,765.56 and 67,382.96 is: 101,088.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,145.84 : 325,765.56 = 67,382.96 : x
  2. Step 2: Convert to fraction form
    217,145.84/325,765.56 = 67,382.96/x
  3. Step 3: Cross multiply
    217,145.84x = 325,765.56 × 67,382.96
  4. Step 4: Simplify right side
    217,145.84x = 21,951,047,698.86
  5. Step 5: Solve for x
    x = 21,951,047,698.86/217,145.84
  6. Step 6: Final answer
    x = 101,088.96

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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.