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Finding the Fourth Proportional to 365,019.78, 503,721.99 and 203,877.12

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Solution

The fourth proportional to 365,019.78, 503,721.99 and 203,877.12 is: 281,347.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,019.78 : 503,721.99 = 203,877.12 : x
  2. Step 2: Convert to fraction form
    365,019.78/503,721.99 = 203,877.12/x
  3. Step 3: Cross multiply
    365,019.78x = 503,721.99 × 203,877.12
  4. Step 4: Simplify right side
    365,019.78x = 102,697,388,601.87
  5. Step 5: Solve for x
    x = 102,697,388,601.87/365,019.78
  6. Step 6: Final answer
    x = 281,347.46

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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.