Home / 279,941.54-386,326.68-172,582.52

Finding the Fourth Proportional to 279,941.54, 386,326.68 and 172,582.52

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Solution

The fourth proportional to 279,941.54, 386,326.68 and 172,582.52 is: 238,168.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,941.54 : 386,326.68 = 172,582.52 : x
  2. Step 2: Convert to fraction form
    279,941.54/386,326.68 = 172,582.52/x
  3. Step 3: Cross multiply
    279,941.54x = 386,326.68 × 172,582.52
  4. Step 4: Simplify right side
    279,941.54x = 66,673,231,977.63
  5. Step 5: Solve for x
    x = 66,673,231,977.63/279,941.54
  6. Step 6: Final answer
    x = 238,168.41

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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.