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Finding the Fourth Proportional to 377,021.02, 519,753.62 and 299,863.66

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Solution

The fourth proportional to 377,021.02, 519,753.62 and 299,863.66 is: 413,386.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,021.02 : 519,753.62 = 299,863.66 : x
  2. Step 2: Convert to fraction form
    377,021.02/519,753.62 = 299,863.66/x
  3. Step 3: Cross multiply
    377,021.02x = 519,753.62 × 299,863.66
  4. Step 4: Simplify right side
    377,021.02x = 155,855,222,791.45
  5. Step 5: Solve for x
    x = 155,855,222,791.45/377,021.02
  6. Step 6: Final answer
    x = 413,386.03

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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.