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Finding the Fourth Proportional to 315,764.48, 435,754.72 and 179,791.52

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Solution

The fourth proportional to 315,764.48, 435,754.72 and 179,791.52 is: 248,112.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,764.48 : 435,754.72 = 179,791.52 : x
  2. Step 2: Convert to fraction form
    315,764.48/435,754.72 = 179,791.52/x
  3. Step 3: Cross multiply
    315,764.48x = 435,754.72 × 179,791.52
  4. Step 4: Simplify right side
    315,764.48x = 78,345,003,455.97
  5. Step 5: Solve for x
    x = 78,345,003,455.97/315,764.48
  6. Step 6: Final answer
    x = 248,112.15

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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.