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Finding the Fourth Proportional to 377,999.33, 521,638.84 and 208,233.45

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Solution

The fourth proportional to 377,999.33, 521,638.84 and 208,233.45 is: 287,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,999.33 : 521,638.84 = 208,233.45 : x
  2. Step 2: Convert to fraction form
    377,999.33/521,638.84 = 208,233.45/x
  3. Step 3: Cross multiply
    377,999.33x = 521,638.84 × 208,233.45
  4. Step 4: Simplify right side
    377,999.33x = 108,622,654,396.18
  5. Step 5: Solve for x
    x = 108,622,654,396.18/377,999.33
  6. Step 6: Final answer
    x = 287,362.03

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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.