Home / 209,253.96-288,772.29-113,760.72

Finding the Fourth Proportional to 209,253.96, 288,772.29 and 113,760.72

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Solution

The fourth proportional to 209,253.96, 288,772.29 and 113,760.72 is: 156,990.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,253.96 : 288,772.29 = 113,760.72 : x
  2. Step 2: Convert to fraction form
    209,253.96/288,772.29 = 113,760.72/x
  3. Step 3: Cross multiply
    209,253.96x = 288,772.29 × 113,760.72
  4. Step 4: Simplify right side
    209,253.96x = 32,850,943,626.45
  5. Step 5: Solve for x
    x = 32,850,943,626.45/209,253.96
  6. Step 6: Final answer
    x = 156,990.79

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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.