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Finding the Fourth Proportional to 248,031.72, 372,027.60 and 79,506.90

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Solution

The fourth proportional to 248,031.72, 372,027.60 and 79,506.90 is: 119,253.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,031.72 : 372,027.60 = 79,506.90 : x
  2. Step 2: Convert to fraction form
    248,031.72/372,027.60 = 79,506.90/x
  3. Step 3: Cross multiply
    248,031.72x = 372,027.60 × 79,506.90
  4. Step 4: Simplify right side
    248,031.72x = 29,578,761,190.44
  5. Step 5: Solve for x
    x = 29,578,761,190.44/248,031.72
  6. Step 6: Final answer
    x = 119,253.95

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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.