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Finding the Fourth Proportional to 293,959.48, 405,063.66 and 278,080.12

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Solution

The fourth proportional to 293,959.48, 405,063.66 and 278,080.12 is: 383,182.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,959.48 : 405,063.66 = 278,080.12 : x
  2. Step 2: Convert to fraction form
    293,959.48/405,063.66 = 278,080.12/x
  3. Step 3: Cross multiply
    293,959.48x = 405,063.66 × 278,080.12
  4. Step 4: Simplify right side
    293,959.48x = 112,640,151,180.44
  5. Step 5: Solve for x
    x = 112,640,151,180.44/293,959.48
  6. Step 6: Final answer
    x = 383,182.58

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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.