Home / 205,974.19-308,962.32-72,854.57

Finding the Fourth Proportional to 205,974.19, 308,962.32 and 72,854.57

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Solution

The fourth proportional to 205,974.19, 308,962.32 and 72,854.57 is: 109,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,974.19 : 308,962.32 = 72,854.57 : x
  2. Step 2: Convert to fraction form
    205,974.19/308,962.32 = 72,854.57/x
  3. Step 3: Cross multiply
    205,974.19x = 308,962.32 × 72,854.57
  4. Step 4: Simplify right side
    205,974.19x = 22,509,317,469.00
  5. Step 5: Solve for x
    x = 22,509,317,469.00/205,974.19
  6. Step 6: Final answer
    x = 109,282.22

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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.