Home / 248,286.20-372,429.30-90,519.80

Finding the Fourth Proportional to 248,286.20, 372,429.30 and 90,519.80

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Solution

The fourth proportional to 248,286.20, 372,429.30 and 90,519.80 is: 135,779.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,286.20 : 372,429.30 = 90,519.80 : x
  2. Step 2: Convert to fraction form
    248,286.20/372,429.30 = 90,519.80/x
  3. Step 3: Cross multiply
    248,286.20x = 372,429.30 × 90,519.80
  4. Step 4: Simplify right side
    248,286.20x = 33,712,225,750.14
  5. Step 5: Solve for x
    x = 33,712,225,750.14/248,286.20
  6. Step 6: Final answer
    x = 135,779.70

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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.