Home / 278,236.28-416,421.30-228,314.36

Finding the Fourth Proportional to 278,236.28, 416,421.30 and 228,314.36

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Solution

The fourth proportional to 278,236.28, 416,421.30 and 228,314.36 is: 341,705.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,236.28 : 416,421.30 = 228,314.36 : x
  2. Step 2: Convert to fraction form
    278,236.28/416,421.30 = 228,314.36/x
  3. Step 3: Cross multiply
    278,236.28x = 416,421.30 × 228,314.36
  4. Step 4: Simplify right side
    278,236.28x = 95,074,962,599.87
  5. Step 5: Solve for x
    x = 95,074,962,599.87/278,236.28
  6. Step 6: Final answer
    x = 341,705.84

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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.