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Finding the Fourth Proportional to 263,801.79, 363,884.72 and 215,473.95

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Solution

The fourth proportional to 263,801.79, 363,884.72 and 215,473.95 is: 297,221.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,801.79 : 363,884.72 = 215,473.95 : x
  2. Step 2: Convert to fraction form
    263,801.79/363,884.72 = 215,473.95/x
  3. Step 3: Cross multiply
    263,801.79x = 363,884.72 × 215,473.95
  4. Step 4: Simplify right side
    263,801.79x = 78,407,676,682.31
  5. Step 5: Solve for x
    x = 78,407,676,682.31/263,801.79
  6. Step 6: Final answer
    x = 297,221.93

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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.