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Finding the Fourth Proportional to 216,484.52, 298,757.87 and 120,991.22

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Solution

The fourth proportional to 216,484.52, 298,757.87 and 120,991.22 is: 166,973.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,484.52 : 298,757.87 = 120,991.22 : x
  2. Step 2: Convert to fraction form
    216,484.52/298,757.87 = 120,991.22/x
  3. Step 3: Cross multiply
    216,484.52x = 298,757.87 × 120,991.22
  4. Step 4: Simplify right side
    216,484.52x = 36,147,078,651.22
  5. Step 5: Solve for x
    x = 36,147,078,651.22/216,484.52
  6. Step 6: Final answer
    x = 166,973.04

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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.