Home / 275,206.28-379,805.47-152,721.83

Finding the Fourth Proportional to 275,206.28, 379,805.47 and 152,721.83

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Solution

The fourth proportional to 275,206.28, 379,805.47 and 152,721.83 is: 210,767.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,206.28 : 379,805.47 = 152,721.83 : x
  2. Step 2: Convert to fraction form
    275,206.28/379,805.47 = 152,721.83/x
  3. Step 3: Cross multiply
    275,206.28x = 379,805.47 × 152,721.83
  4. Step 4: Simplify right side
    275,206.28x = 58,004,586,990.12
  5. Step 5: Solve for x
    x = 58,004,586,990.12/275,206.28
  6. Step 6: Final answer
    x = 210,767.68

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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.