Home / 215,469.28-324,500.44-190,819.36

Finding the Fourth Proportional to 215,469.28, 324,500.44 and 190,819.36

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Solution

The fourth proportional to 215,469.28, 324,500.44 and 190,819.36 is: 287,377.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,469.28 : 324,500.44 = 190,819.36 : x
  2. Step 2: Convert to fraction form
    215,469.28/324,500.44 = 190,819.36/x
  3. Step 3: Cross multiply
    215,469.28x = 324,500.44 × 190,819.36
  4. Step 4: Simplify right side
    215,469.28x = 61,920,966,280.52
  5. Step 5: Solve for x
    x = 61,920,966,280.52/215,469.28
  6. Step 6: Final answer
    x = 287,377.24

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.