Home / 279,943.54-386,329.44-172,584.52

Finding the Fourth Proportional to 279,943.54, 386,329.44 and 172,584.52

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Solution

The fourth proportional to 279,943.54, 386,329.44 and 172,584.52 is: 238,171.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,943.54 : 386,329.44 = 172,584.52 : x
  2. Step 2: Convert to fraction form
    279,943.54/386,329.44 = 172,584.52/x
  3. Step 3: Cross multiply
    279,943.54x = 386,329.44 × 172,584.52
  4. Step 4: Simplify right side
    279,943.54x = 66,674,480,964.27
  5. Step 5: Solve for x
    x = 66,674,480,964.27/279,943.54
  6. Step 6: Final answer
    x = 238,171.17

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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.