Home / 208,825.52-288,179.40-113,332.20

Finding the Fourth Proportional to 208,825.52, 288,179.40 and 113,332.20

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Solution

The fourth proportional to 208,825.52, 288,179.40 and 113,332.20 is: 156,398.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,825.52 : 288,179.40 = 113,332.20 : x
  2. Step 2: Convert to fraction form
    208,825.52/288,179.40 = 113,332.20/x
  3. Step 3: Cross multiply
    208,825.52x = 288,179.40 × 113,332.20
  4. Step 4: Simplify right side
    208,825.52x = 32,660,005,396.68
  5. Step 5: Solve for x
    x = 32,660,005,396.68/208,825.52
  6. Step 6: Final answer
    x = 156,398.53

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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.