Home / 209,132.22-288,604.30-113,638.92

Finding the Fourth Proportional to 209,132.22, 288,604.30 and 113,638.92

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Solution

The fourth proportional to 209,132.22, 288,604.30 and 113,638.92 is: 156,822.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,132.22 : 288,604.30 = 113,638.92 : x
  2. Step 2: Convert to fraction form
    209,132.22/288,604.30 = 113,638.92/x
  3. Step 3: Cross multiply
    209,132.22x = 288,604.30 × 113,638.92
  4. Step 4: Simplify right side
    209,132.22x = 32,796,680,959.36
  5. Step 5: Solve for x
    x = 32,796,680,959.36/209,132.22
  6. Step 6: Final answer
    x = 156,822.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.