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Finding the Fourth Proportional to 248,242.72, 372,375.60 and 70,761.76

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Solution

The fourth proportional to 248,242.72, 372,375.60 and 70,761.76 is: 106,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,242.72 : 372,375.60 = 70,761.76 : x
  2. Step 2: Convert to fraction form
    248,242.72/372,375.60 = 70,761.76/x
  3. Step 3: Cross multiply
    248,242.72x = 372,375.60 × 70,761.76
  4. Step 4: Simplify right side
    248,242.72x = 26,349,952,837.06
  5. Step 5: Solve for x
    x = 26,349,952,837.06/248,242.72
  6. Step 6: Final answer
    x = 106,145.92

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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.