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Finding the Fourth Proportional to 400,283.79, 552,301.20 and 239,107.29

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Solution

The fourth proportional to 400,283.79, 552,301.20 and 239,107.29 is: 329,914.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,283.79 : 552,301.20 = 239,107.29 : x
  2. Step 2: Convert to fraction form
    400,283.79/552,301.20 = 239,107.29/x
  3. Step 3: Cross multiply
    400,283.79x = 552,301.20 × 239,107.29
  4. Step 4: Simplify right side
    400,283.79x = 132,059,243,195.75
  5. Step 5: Solve for x
    x = 132,059,243,195.75/400,283.79
  6. Step 6: Final answer
    x = 329,914.04

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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.