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Finding the Fourth Proportional to 306,301.32, 422,633.88 and 178,952.31

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Solution

The fourth proportional to 306,301.32, 422,633.88 and 178,952.31 is: 246,918.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,301.32 : 422,633.88 = 178,952.31 : x
  2. Step 2: Convert to fraction form
    306,301.32/422,633.88 = 178,952.31/x
  3. Step 3: Cross multiply
    306,301.32x = 422,633.88 × 178,952.31
  4. Step 4: Simplify right side
    306,301.32x = 75,631,309,110.26
  5. Step 5: Solve for x
    x = 75,631,309,110.26/306,301.32
  6. Step 6: Final answer
    x = 246,918.00

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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.