Home / 278,569.29-382,945.57-239,664.10

Finding the Fourth Proportional to 278,569.29, 382,945.57 and 239,664.10

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Solution

The fourth proportional to 278,569.29, 382,945.57 and 239,664.10 is: 329,463.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,569.29 : 382,945.57 = 239,664.10 : x
  2. Step 2: Convert to fraction form
    278,569.29/382,945.57 = 239,664.10/x
  3. Step 3: Cross multiply
    278,569.29x = 382,945.57 × 239,664.10
  4. Step 4: Simplify right side
    278,569.29x = 91,778,305,383.04
  5. Step 5: Solve for x
    x = 91,778,305,383.04/278,569.29
  6. Step 6: Final answer
    x = 329,463.11

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.