Home / 387,779.88-582,214.78-198,376.11

Finding the Fourth Proportional to 387,779.88, 582,214.78 and 198,376.11

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Solution

The fourth proportional to 387,779.88, 582,214.78 and 198,376.11 is: 297,842.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,779.88 : 582,214.78 = 198,376.11 : x
  2. Step 2: Convert to fraction form
    387,779.88/582,214.78 = 198,376.11/x
  3. Step 3: Cross multiply
    387,779.88x = 582,214.78 × 198,376.11
  4. Step 4: Simplify right side
    387,779.88x = 115,497,504,696.44
  5. Step 5: Solve for x
    x = 115,497,504,696.44/387,779.88
  6. Step 6: Final answer
    x = 297,842.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.