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Finding the Fourth Proportional to 377,190.81, 520,098.17 and 275,036.04

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Solution

The fourth proportional to 377,190.81, 520,098.17 and 275,036.04 is: 379,239.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,190.81 : 520,098.17 = 275,036.04 : x
  2. Step 2: Convert to fraction form
    377,190.81/520,098.17 = 275,036.04/x
  3. Step 3: Cross multiply
    377,190.81x = 520,098.17 × 275,036.04
  4. Step 4: Simplify right side
    377,190.81x = 143,045,739,712.87
  5. Step 5: Solve for x
    x = 143,045,739,712.87/377,190.81
  6. Step 6: Final answer
    x = 379,239.73

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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.