Home / 210,481.12-290,462.88-114,993.28

Finding the Fourth Proportional to 210,481.12, 290,462.88 and 114,993.28

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Solution

The fourth proportional to 210,481.12, 290,462.88 and 114,993.28 is: 158,690.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,481.12 : 290,462.88 = 114,993.28 : x
  2. Step 2: Convert to fraction form
    210,481.12/290,462.88 = 114,993.28/x
  3. Step 3: Cross multiply
    210,481.12x = 290,462.88 × 114,993.28
  4. Step 4: Simplify right side
    210,481.12x = 33,401,279,289.45
  5. Step 5: Solve for x
    x = 33,401,279,289.45/210,481.12
  6. Step 6: Final answer
    x = 158,690.14

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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.