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Finding the Fourth Proportional to 543,262.97, 815,039.37 and 188,276.69

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Solution

The fourth proportional to 543,262.97, 815,039.37 and 188,276.69 is: 282,465.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,262.97 : 815,039.37 = 188,276.69 : x
  2. Step 2: Convert to fraction form
    543,262.97/815,039.37 = 188,276.69/x
  3. Step 3: Cross multiply
    543,262.97x = 815,039.37 × 188,276.69
  4. Step 4: Simplify right side
    543,262.97x = 153,452,910,728.09
  5. Step 5: Solve for x
    x = 153,452,910,728.09/543,262.97
  6. Step 6: Final answer
    x = 282,465.25

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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.