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Finding the Fourth Proportional to 285,704.44, 428,552.29 and 69,565.18

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Solution

The fourth proportional to 285,704.44, 428,552.29 and 69,565.18 is: 104,346.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,704.44 : 428,552.29 = 69,565.18 : x
  2. Step 2: Convert to fraction form
    285,704.44/428,552.29 = 69,565.18/x
  3. Step 3: Cross multiply
    285,704.44x = 428,552.29 × 69,565.18
  4. Step 4: Simplify right side
    285,704.44x = 29,812,317,193.26
  5. Step 5: Solve for x
    x = 29,812,317,193.26/285,704.44
  6. Step 6: Final answer
    x = 104,346.71

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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.