Home / 205,720.56-308,309.22-110,717.28

Finding the Fourth Proportional to 205,720.56, 308,309.22 and 110,717.28

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Solution

The fourth proportional to 205,720.56, 308,309.22 and 110,717.28 is: 165,929.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,720.56 : 308,309.22 = 110,717.28 : x
  2. Step 2: Convert to fraction form
    205,720.56/308,309.22 = 110,717.28/x
  3. Step 3: Cross multiply
    205,720.56x = 308,309.22 × 110,717.28
  4. Step 4: Simplify right side
    205,720.56x = 34,135,158,237.32
  5. Step 5: Solve for x
    x = 34,135,158,237.32/205,720.56
  6. Step 6: Final answer
    x = 165,929.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.