Home / 268,716.45-402,742.50-135,634.66

Finding the Fourth Proportional to 268,716.45, 402,742.50 and 135,634.66

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Solution

The fourth proportional to 268,716.45, 402,742.50 and 135,634.66 is: 203,284.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,716.45 : 402,742.50 = 135,634.66 : x
  2. Step 2: Convert to fraction form
    268,716.45/402,742.50 = 135,634.66/x
  3. Step 3: Cross multiply
    268,716.45x = 402,742.50 × 135,634.66
  4. Step 4: Simplify right side
    268,716.45x = 54,625,842,055.05
  5. Step 5: Solve for x
    x = 54,625,842,055.05/268,716.45
  6. Step 6: Final answer
    x = 203,284.32

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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.