Home / 211,453.56-317,180.88-71,310.60

Finding the Fourth Proportional to 211,453.56, 317,180.88 and 71,310.60

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Solution

The fourth proportional to 211,453.56, 317,180.88 and 71,310.60 is: 106,966.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,453.56 : 317,180.88 = 71,310.60 : x
  2. Step 2: Convert to fraction form
    211,453.56/317,180.88 = 71,310.60/x
  3. Step 3: Cross multiply
    211,453.56x = 317,180.88 × 71,310.60
  4. Step 4: Simplify right side
    211,453.56x = 22,618,358,861.33
  5. Step 5: Solve for x
    x = 22,618,358,861.33/211,453.56
  6. Step 6: Final answer
    x = 106,966.08

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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.