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Finding the Fourth Proportional to 279,414.62, 385,600.67 and 197,888.93

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Solution

The fourth proportional to 279,414.62, 385,600.67 and 197,888.93 is: 273,092.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,414.62 : 385,600.67 = 197,888.93 : x
  2. Step 2: Convert to fraction form
    279,414.62/385,600.67 = 197,888.93/x
  3. Step 3: Cross multiply
    279,414.62x = 385,600.67 × 197,888.93
  4. Step 4: Simplify right side
    279,414.62x = 76,306,103,993.58
  5. Step 5: Solve for x
    x = 76,306,103,993.58/279,414.62
  6. Step 6: Final answer
    x = 273,092.74

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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.