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Finding the Fourth Proportional to 217,205.56, 325,728.42 and 75,014.65

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Solution

The fourth proportional to 217,205.56, 325,728.42 and 75,014.65 is: 112,494.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,205.56 : 325,728.42 = 75,014.65 : x
  2. Step 2: Convert to fraction form
    217,205.56/325,728.42 = 75,014.65/x
  3. Step 3: Cross multiply
    217,205.56x = 325,728.42 × 75,014.65
  4. Step 4: Simplify right side
    217,205.56x = 24,434,403,421.35
  5. Step 5: Solve for x
    x = 24,434,403,421.35/217,205.56
  6. Step 6: Final answer
    x = 112,494.37

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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.