Home / 378,875.07-522,839.61-206,787.33

Finding the Fourth Proportional to 378,875.07, 522,839.61 and 206,787.33

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Solution

The fourth proportional to 378,875.07, 522,839.61 and 206,787.33 is: 285,362.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,875.07 : 522,839.61 = 206,787.33 : x
  2. Step 2: Convert to fraction form
    378,875.07/522,839.61 = 206,787.33/x
  3. Step 3: Cross multiply
    378,875.07x = 522,839.61 × 206,787.33
  4. Step 4: Simplify right side
    378,875.07x = 108,116,606,970.14
  5. Step 5: Solve for x
    x = 108,116,606,970.14/378,875.07
  6. Step 6: Final answer
    x = 285,362.16

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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.