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Finding the Fourth Proportional to 185,930, 279,906.68 and 169,396.28

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Solution

The fourth proportional to 185,930, 279,906.68 and 169,396.28 is: 255,016.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,930 : 279,906.68 = 169,396.28 : x
  2. Step 2: Convert to fraction form
    185,930/279,906.68 = 169,396.28/x
  3. Step 3: Cross multiply
    185,930x = 279,906.68 × 169,396.28
  4. Step 4: Simplify right side
    185,930x = 47,415,150,339.15
  5. Step 5: Solve for x
    x = 47,415,150,339.15/185,930
  6. Step 6: Final answer
    x = 255,016.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.