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Finding the Fourth Proportional to 377,054.59, 520,346.96 and 215,961.79

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Solution

The fourth proportional to 377,054.59, 520,346.96 and 215,961.79 is: 298,033.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,054.59 : 520,346.96 = 215,961.79 : x
  2. Step 2: Convert to fraction form
    377,054.59/520,346.96 = 215,961.79/x
  3. Step 3: Cross multiply
    377,054.59x = 520,346.96 × 215,961.79
  4. Step 4: Simplify right side
    377,054.59x = 112,375,059,822.85
  5. Step 5: Solve for x
    x = 112,375,059,822.85/377,054.59
  6. Step 6: Final answer
    x = 298,033.93

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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.