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Finding the Fourth Proportional to 338,258.49, 466,422.66 and 215,556.50

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Solution

The fourth proportional to 338,258.49, 466,422.66 and 215,556.50 is: 297,229.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,258.49 : 466,422.66 = 215,556.50 : x
  2. Step 2: Convert to fraction form
    338,258.49/466,422.66 = 215,556.50/x
  3. Step 3: Cross multiply
    338,258.49x = 466,422.66 × 215,556.50
  4. Step 4: Simplify right side
    338,258.49x = 100,540,433,778.18
  5. Step 5: Solve for x
    x = 100,540,433,778.18/338,258.49
  6. Step 6: Final answer
    x = 297,229.59

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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.