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Finding the Fourth Proportional to 376,938, 520,174.44 and 207,172.13

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Solution

The fourth proportional to 376,938, 520,174.44 and 207,172.13 is: 285,897.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,938 : 520,174.44 = 207,172.13 : x
  2. Step 2: Convert to fraction form
    376,938/520,174.44 = 207,172.13/x
  3. Step 3: Cross multiply
    376,938x = 520,174.44 × 207,172.13
  4. Step 4: Simplify right side
    376,938x = 107,765,644,105.49
  5. Step 5: Solve for x
    x = 107,765,644,105.49/376,938
  6. Step 6: Final answer
    x = 285,897.53

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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.