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Finding the Fourth Proportional to 216,216.62, 298,299.87 and 125,540.30

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Solution

The fourth proportional to 216,216.62, 298,299.87 and 125,540.30 is: 173,199.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,216.62 : 298,299.87 = 125,540.30 : x
  2. Step 2: Convert to fraction form
    216,216.62/298,299.87 = 125,540.30/x
  3. Step 3: Cross multiply
    216,216.62x = 298,299.87 × 125,540.30
  4. Step 4: Simplify right side
    216,216.62x = 37,448,655,169.76
  5. Step 5: Solve for x
    x = 37,448,655,169.76/216,216.62
  6. Step 6: Final answer
    x = 173,199.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.