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Finding the Fourth Proportional to 306,494.82, 422,952.24 and 168,660.90

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Solution

The fourth proportional to 306,494.82, 422,952.24 and 168,660.90 is: 232,746.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,494.82 : 422,952.24 = 168,660.90 : x
  2. Step 2: Convert to fraction form
    306,494.82/422,952.24 = 168,660.90/x
  3. Step 3: Cross multiply
    306,494.82x = 422,952.24 × 168,660.90
  4. Step 4: Simplify right side
    306,494.82x = 71,335,505,455.42
  5. Step 5: Solve for x
    x = 71,335,505,455.42/306,494.82
  6. Step 6: Final answer
    x = 232,746.20

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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.