Home / 306,948.60-423,654.42-206,288.28

Finding the Fourth Proportional to 306,948.60, 423,654.42 and 206,288.28

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Solution

The fourth proportional to 306,948.60, 423,654.42 and 206,288.28 is: 284,721.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,948.60 : 423,654.42 = 206,288.28 : x
  2. Step 2: Convert to fraction form
    306,948.60/423,654.42 = 206,288.28/x
  3. Step 3: Cross multiply
    306,948.60x = 423,654.42 × 206,288.28
  4. Step 4: Simplify right side
    306,948.60x = 87,394,941,616.20
  5. Step 5: Solve for x
    x = 87,394,941,616.20/306,948.60
  6. Step 6: Final answer
    x = 284,721.75

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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.