Home / 248,002.20-372,003.30-129,709.80

Finding the Fourth Proportional to 248,002.20, 372,003.30 and 129,709.80

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Solution

The fourth proportional to 248,002.20, 372,003.30 and 129,709.80 is: 194,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,002.20 : 372,003.30 = 129,709.80 : x
  2. Step 2: Convert to fraction form
    248,002.20/372,003.30 = 129,709.80/x
  3. Step 3: Cross multiply
    248,002.20x = 372,003.30 × 129,709.80
  4. Step 4: Simplify right side
    248,002.20x = 48,252,473,642.34
  5. Step 5: Solve for x
    x = 48,252,473,642.34/248,002.20
  6. Step 6: Final answer
    x = 194,564.70

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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.