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Finding the Fourth Proportional to 248,605.75, 372,908.67 and 82,393.75

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Solution

The fourth proportional to 248,605.75, 372,908.67 and 82,393.75 is: 123,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,605.75 : 372,908.67 = 82,393.75 : x
  2. Step 2: Convert to fraction form
    248,605.75/372,908.67 = 82,393.75/x
  3. Step 3: Cross multiply
    248,605.75x = 372,908.67 × 82,393.75
  4. Step 4: Simplify right side
    248,605.75x = 30,725,343,728.81
  5. Step 5: Solve for x
    x = 30,725,343,728.81/248,605.75
  6. Step 6: Final answer
    x = 123,590.64

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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.