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Finding the Fourth Proportional to 377,076.62, 520,218.52 and 215,845.52

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Solution

The fourth proportional to 377,076.62, 520,218.52 and 215,845.52 is: 297,782.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,076.62 : 520,218.52 = 215,845.52 : x
  2. Step 2: Convert to fraction form
    377,076.62/520,218.52 = 215,845.52/x
  3. Step 3: Cross multiply
    377,076.62x = 520,218.52 × 215,845.52
  4. Step 4: Simplify right side
    377,076.62x = 112,286,833,822.32
  5. Step 5: Solve for x
    x = 112,286,833,822.32/377,076.62
  6. Step 6: Final answer
    x = 297,782.54

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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.