Home / 859,213.12-1,288,718.70-228,175.60

Finding the Fourth Proportional to 859,213.12, 1,288,718.70 and 228,175.60

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Solution

The fourth proportional to 859,213.12, 1,288,718.70 and 228,175.60 is: 342,236.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,213.12 : 1,288,718.70 = 228,175.60 : x
  2. Step 2: Convert to fraction form
    859,213.12/1,288,718.70 = 228,175.60/x
  3. Step 3: Cross multiply
    859,213.12x = 1,288,718.70 × 228,175.60
  4. Step 4: Simplify right side
    859,213.12x = 294,054,162,603.72
  5. Step 5: Solve for x
    x = 294,054,162,603.72/859,213.12
  6. Step 6: Final answer
    x = 342,236.58

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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.