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Finding the Fourth Proportional to 265,514.67, 398,209.10 and 75,969.18

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Solution

The fourth proportional to 265,514.67, 398,209.10 and 75,969.18 is: 113,935.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,514.67 : 398,209.10 = 75,969.18 : x
  2. Step 2: Convert to fraction form
    265,514.67/398,209.10 = 75,969.18/x
  3. Step 3: Cross multiply
    265,514.67x = 398,209.10 × 75,969.18
  4. Step 4: Simplify right side
    265,514.67x = 30,251,618,415.69
  5. Step 5: Solve for x
    x = 30,251,618,415.69/265,514.67
  6. Step 6: Final answer
    x = 113,935.77

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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.