Home / 268,810.11-403,201.80-100,317.56

Finding the Fourth Proportional to 268,810.11, 403,201.80 and 100,317.56

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Solution

The fourth proportional to 268,810.11, 403,201.80 and 100,317.56 is: 150,471.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,810.11 : 403,201.80 = 100,317.56 : x
  2. Step 2: Convert to fraction form
    268,810.11/403,201.80 = 100,317.56/x
  3. Step 3: Cross multiply
    268,810.11x = 403,201.80 × 100,317.56
  4. Step 4: Simplify right side
    268,810.11x = 40,448,218,747.60
  5. Step 5: Solve for x
    x = 40,448,218,747.60/268,810.11
  6. Step 6: Final answer
    x = 150,471.34

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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.