Home / 268,327.10-402,486.46-68,645.76

Finding the Fourth Proportional to 268,327.10, 402,486.46 and 68,645.76

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Solution

The fourth proportional to 268,327.10, 402,486.46 and 68,645.76 is: 102,967.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,327.10 : 402,486.46 = 68,645.76 : x
  2. Step 2: Convert to fraction form
    268,327.10/402,486.46 = 68,645.76/x
  3. Step 3: Cross multiply
    268,327.10x = 402,486.46 × 68,645.76
  4. Step 4: Simplify right side
    268,327.10x = 27,628,988,764.80
  5. Step 5: Solve for x
    x = 27,628,988,764.80/268,327.10
  6. Step 6: Final answer
    x = 102,967.57

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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.