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Finding the Fourth Proportional to 293,589.78, 405,155.97 and 159,453.78

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Solution

The fourth proportional to 293,589.78, 405,155.97 and 159,453.78 is: 220,047.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,589.78 : 405,155.97 = 159,453.78 : x
  2. Step 2: Convert to fraction form
    293,589.78/405,155.97 = 159,453.78/x
  3. Step 3: Cross multiply
    293,589.78x = 405,155.97 × 159,453.78
  4. Step 4: Simplify right side
    293,589.78x = 64,603,650,906.07
  5. Step 5: Solve for x
    x = 64,603,650,906.07/293,589.78
  6. Step 6: Final answer
    x = 220,047.34

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1.5x scale

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.