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Finding the Fourth Proportional to 248,371.65, 372,558.69 and 90,599.85

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Solution

The fourth proportional to 248,371.65, 372,558.69 and 90,599.85 is: 135,900.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,371.65 : 372,558.69 = 90,599.85 : x
  2. Step 2: Convert to fraction form
    248,371.65/372,558.69 = 90,599.85/x
  3. Step 3: Cross multiply
    248,371.65x = 372,558.69 × 90,599.85
  4. Step 4: Simplify right side
    248,371.65x = 33,753,761,430.20
  5. Step 5: Solve for x
    x = 33,753,761,430.20/248,371.65
  6. Step 6: Final answer
    x = 135,900.22

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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.