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Finding the Fourth Proportional to 485,717.22, 670,294.13 and 267,934.23

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Solution

The fourth proportional to 485,717.22, 670,294.13 and 267,934.23 is: 369,751.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,717.22 : 670,294.13 = 267,934.23 : x
  2. Step 2: Convert to fraction form
    485,717.22/670,294.13 = 267,934.23/x
  3. Step 3: Cross multiply
    485,717.22x = 670,294.13 × 267,934.23
  4. Step 4: Simplify right side
    485,717.22x = 179,594,740,255.40
  5. Step 5: Solve for x
    x = 179,594,740,255.40/485,717.22
  6. Step 6: Final answer
    x = 369,751.64

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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.