Home / 213,104.40-320,002.20-154,352.40

Finding the Fourth Proportional to 213,104.40, 320,002.20 and 154,352.40

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Solution

The fourth proportional to 213,104.40, 320,002.20 and 154,352.40 is: 231,778.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,104.40 : 320,002.20 = 154,352.40 : x
  2. Step 2: Convert to fraction form
    213,104.40/320,002.20 = 154,352.40/x
  3. Step 3: Cross multiply
    213,104.40x = 320,002.20 × 154,352.40
  4. Step 4: Simplify right side
    213,104.40x = 49,393,107,575.28
  5. Step 5: Solve for x
    x = 49,393,107,575.28/213,104.40
  6. Step 6: Final answer
    x = 231,778.92

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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.