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Finding the Fourth Proportional to 378,073.35, 567,220.77 and 111,840.98

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Solution

The fourth proportional to 378,073.35, 567,220.77 and 111,840.98 is: 167,794.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,073.35 : 567,220.77 = 111,840.98 : x
  2. Step 2: Convert to fraction form
    378,073.35/567,220.77 = 111,840.98/x
  3. Step 3: Cross multiply
    378,073.35x = 567,220.77 × 111,840.98
  4. Step 4: Simplify right side
    378,073.35x = 63,438,523,957.05
  5. Step 5: Solve for x
    x = 63,438,523,957.05/378,073.35
  6. Step 6: Final answer
    x = 167,794.22

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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.