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Finding the Fourth Proportional to 378,592, 567,721.68 and 141,768.55

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Solution

The fourth proportional to 378,592, 567,721.68 and 141,768.55 is: 212,590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,592 : 567,721.68 = 141,768.55 : x
  2. Step 2: Convert to fraction form
    378,592/567,721.68 = 141,768.55/x
  3. Step 3: Cross multiply
    378,592x = 567,721.68 × 141,768.55
  4. Step 4: Simplify right side
    378,592x = 80,485,079,377.16
  5. Step 5: Solve for x
    x = 80,485,079,377.16/378,592
  6. Step 6: Final answer
    x = 212,590.54

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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.