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Finding the Fourth Proportional to 293,739, 405,360.90 and 159,603

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Solution

The fourth proportional to 293,739, 405,360.90 and 159,603 is: 220,252.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,739 : 405,360.90 = 159,603 : x
  2. Step 2: Convert to fraction form
    293,739/405,360.90 = 159,603/x
  3. Step 3: Cross multiply
    293,739x = 405,360.90 × 159,603
  4. Step 4: Simplify right side
    293,739x = 64,696,815,722.70
  5. Step 5: Solve for x
    x = 64,696,815,722.70/293,739
  6. Step 6: Final answer
    x = 220,252.73

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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.