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Finding the Fourth Proportional to 376,772.54, 519,799.34 and 213,391.49

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Solution

The fourth proportional to 376,772.54, 519,799.34 and 213,391.49 is: 294,397.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,772.54 : 519,799.34 = 213,391.49 : x
  2. Step 2: Convert to fraction form
    376,772.54/519,799.34 = 213,391.49/x
  3. Step 3: Cross multiply
    376,772.54x = 519,799.34 × 213,391.49
  4. Step 4: Simplify right side
    376,772.54x = 110,920,753,598.10
  5. Step 5: Solve for x
    x = 110,920,753,598.10/376,772.54
  6. Step 6: Final answer
    x = 294,397.13

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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.