Home / 248,257.20-372,348.90-90,448.86

Finding the Fourth Proportional to 248,257.20, 372,348.90 and 90,448.86

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Solution

The fourth proportional to 248,257.20, 372,348.90 and 90,448.86 is: 135,659.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,257.20 : 372,348.90 = 90,448.86 : x
  2. Step 2: Convert to fraction form
    248,257.20/372,348.90 = 90,448.86/x
  3. Step 3: Cross multiply
    248,257.20x = 372,348.90 × 90,448.86
  4. Step 4: Simplify right side
    248,257.20x = 33,678,533,527.25
  5. Step 5: Solve for x
    x = 33,678,533,527.25/248,257.20
  6. Step 6: Final answer
    x = 135,659.85

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1.5x scale

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.