Home / 209,011.68-288,438.20-113,520.24

Finding the Fourth Proportional to 209,011.68, 288,438.20 and 113,520.24

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Solution

The fourth proportional to 209,011.68, 288,438.20 and 113,520.24 is: 156,659.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,011.68 : 288,438.20 = 113,520.24 : x
  2. Step 2: Convert to fraction form
    209,011.68/288,438.20 = 113,520.24/x
  3. Step 3: Cross multiply
    209,011.68x = 288,438.20 × 113,520.24
  4. Step 4: Simplify right side
    209,011.68x = 32,743,573,689.17
  5. Step 5: Solve for x
    x = 32,743,573,689.17/209,011.68
  6. Step 6: Final answer
    x = 156,659.06

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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.