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Finding the Fourth Proportional to 265,865.39, 366,891.12 and 145,007.67

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Solution

The fourth proportional to 265,865.39, 366,891.12 and 145,007.67 is: 200,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,865.39 : 366,891.12 = 145,007.67 : x
  2. Step 2: Convert to fraction form
    265,865.39/366,891.12 = 145,007.67/x
  3. Step 3: Cross multiply
    265,865.39x = 366,891.12 × 145,007.67
  4. Step 4: Simplify right side
    265,865.39x = 53,202,025,766.97
  5. Step 5: Solve for x
    x = 53,202,025,766.97/265,865.39
  6. Step 6: Final answer
    x = 200,108.88

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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.