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Finding the Fourth Proportional to 376,401.57, 519,367.14 and 213,057.30

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Solution

The fourth proportional to 376,401.57, 519,367.14 and 213,057.30 is: 293,981.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,401.57 : 519,367.14 = 213,057.30 : x
  2. Step 2: Convert to fraction form
    376,401.57/519,367.14 = 213,057.30/x
  3. Step 3: Cross multiply
    376,401.57x = 519,367.14 × 213,057.30
  4. Step 4: Simplify right side
    376,401.57x = 110,654,960,557.12
  5. Step 5: Solve for x
    x = 110,654,960,557.12/376,401.57
  6. Step 6: Final answer
    x = 293,981.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.