Home / 213,495.28-320,231.37-108,311.52

Finding the Fourth Proportional to 213,495.28, 320,231.37 and 108,311.52

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Solution

The fourth proportional to 213,495.28, 320,231.37 and 108,311.52 is: 162,461.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,495.28 : 320,231.37 = 108,311.52 : x
  2. Step 2: Convert to fraction form
    213,495.28/320,231.37 = 108,311.52/x
  3. Step 3: Cross multiply
    213,495.28x = 320,231.37 × 108,311.52
  4. Step 4: Simplify right side
    213,495.28x = 34,684,746,436.38
  5. Step 5: Solve for x
    x = 34,684,746,436.38/213,495.28
  6. Step 6: Final answer
    x = 162,461.42

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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.