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Finding the Fourth Proportional to 267,021.26, 368,456.76 and 212,711.74

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Solution

The fourth proportional to 267,021.26, 368,456.76 and 212,711.74 is: 293,516.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,021.26 : 368,456.76 = 212,711.74 : x
  2. Step 2: Convert to fraction form
    267,021.26/368,456.76 = 212,711.74/x
  3. Step 3: Cross multiply
    267,021.26x = 368,456.76 × 212,711.74
  4. Step 4: Simplify right side
    267,021.26x = 78,375,078,534.36
  5. Step 5: Solve for x
    x = 78,375,078,534.36/267,021.26
  6. Step 6: Final answer
    x = 293,516.25

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1.5x scale

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.