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Finding the Fourth Proportional to 225,930.62, 311,792.55 and 136,489.34

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Solution

The fourth proportional to 225,930.62, 311,792.55 and 136,489.34 is: 188,360.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,930.62 : 311,792.55 = 136,489.34 : x
  2. Step 2: Convert to fraction form
    225,930.62/311,792.55 = 136,489.34/x
  3. Step 3: Cross multiply
    225,930.62x = 311,792.55 × 136,489.34
  4. Step 4: Simplify right side
    225,930.62x = 42,556,359,366.42
  5. Step 5: Solve for x
    x = 42,556,359,366.42/225,930.62
  6. Step 6: Final answer
    x = 188,360.30

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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.