Home / 377,433.38-521,021.50-269,816.78

Finding the Fourth Proportional to 377,433.38, 521,021.50 and 269,816.78

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Solution

The fourth proportional to 377,433.38, 521,021.50 and 269,816.78 is: 372,463.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,433.38 : 521,021.50 = 269,816.78 : x
  2. Step 2: Convert to fraction form
    377,433.38/521,021.50 = 269,816.78/x
  3. Step 3: Cross multiply
    377,433.38x = 521,021.50 × 269,816.78
  4. Step 4: Simplify right side
    377,433.38x = 140,580,343,440.77
  5. Step 5: Solve for x
    x = 140,580,343,440.77/377,433.38
  6. Step 6: Final answer
    x = 372,463.99

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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.