Home / 268,346.58-402,578.19-81,372.66

Finding the Fourth Proportional to 268,346.58, 402,578.19 and 81,372.66

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Solution

The fourth proportional to 268,346.58, 402,578.19 and 81,372.66 is: 122,076.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,346.58 : 402,578.19 = 81,372.66 : x
  2. Step 2: Convert to fraction form
    268,346.58/402,578.19 = 81,372.66/x
  3. Step 3: Cross multiply
    268,346.58x = 402,578.19 × 81,372.66
  4. Step 4: Simplify right side
    268,346.58x = 32,758,858,178.29
  5. Step 5: Solve for x
    x = 32,758,858,178.29/268,346.58
  6. Step 6: Final answer
    x = 122,076.67

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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.