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Finding the Fourth Proportional to 263,169.88, 363,152.40 and 155,721.12

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Solution

The fourth proportional to 263,169.88, 363,152.40 and 155,721.12 is: 214,882.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,169.88 : 363,152.40 = 155,721.12 : x
  2. Step 2: Convert to fraction form
    263,169.88/363,152.40 = 155,721.12/x
  3. Step 3: Cross multiply
    263,169.88x = 363,152.40 × 155,721.12
  4. Step 4: Simplify right side
    263,169.88x = 56,550,498,458.69
  5. Step 5: Solve for x
    x = 56,550,498,458.69/263,169.88
  6. Step 6: Final answer
    x = 214,882.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.