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Finding the Fourth Proportional to 173,034.30, 259,551.45 and 128,747.55

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Solution

The fourth proportional to 173,034.30, 259,551.45 and 128,747.55 is: 193,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,034.30 : 259,551.45 = 128,747.55 : x
  2. Step 2: Convert to fraction form
    173,034.30/259,551.45 = 128,747.55/x
  3. Step 3: Cross multiply
    173,034.30x = 259,551.45 × 128,747.55
  4. Step 4: Simplify right side
    173,034.30x = 33,416,613,286.45
  5. Step 5: Solve for x
    x = 33,416,613,286.45/173,034.30
  6. Step 6: Final answer
    x = 193,121.33

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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.