Home / 205,815.74-308,546.18-79,544.57

Finding the Fourth Proportional to 205,815.74, 308,546.18 and 79,544.57

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Solution

The fourth proportional to 205,815.74, 308,546.18 and 79,544.57 is: 119,248.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,815.74 : 308,546.18 = 79,544.57 : x
  2. Step 2: Convert to fraction form
    205,815.74/308,546.18 = 79,544.57/x
  3. Step 3: Cross multiply
    205,815.74x = 308,546.18 × 79,544.57
  4. Step 4: Simplify right side
    205,815.74x = 24,543,173,213.24
  5. Step 5: Solve for x
    x = 24,543,173,213.24/205,815.74
  6. Step 6: Final answer
    x = 119,248.28

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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.