Home / 205,550.38-308,284.26-72,436.06

Finding the Fourth Proportional to 205,550.38, 308,284.26 and 72,436.06

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Solution

The fourth proportional to 205,550.38, 308,284.26 and 72,436.06 is: 108,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,550.38 : 308,284.26 = 72,436.06 : x
  2. Step 2: Convert to fraction form
    205,550.38/308,284.26 = 72,436.06/x
  3. Step 3: Cross multiply
    205,550.38x = 308,284.26 × 72,436.06
  4. Step 4: Simplify right side
    205,550.38x = 22,330,897,154.42
  5. Step 5: Solve for x
    x = 22,330,897,154.42/205,550.38
  6. Step 6: Final answer
    x = 108,639.53

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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.