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Finding the Fourth Proportional to 216,903.66, 299,338.24 and 120,107.04

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Solution

The fourth proportional to 216,903.66, 299,338.24 and 120,107.04 is: 165,753.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,903.66 : 299,338.24 = 120,107.04 : x
  2. Step 2: Convert to fraction form
    216,903.66/299,338.24 = 120,107.04/x
  3. Step 3: Cross multiply
    216,903.66x = 299,338.24 × 120,107.04
  4. Step 4: Simplify right side
    216,903.66x = 35,952,629,965.21
  5. Step 5: Solve for x
    x = 35,952,629,965.21/216,903.66
  6. Step 6: Final answer
    x = 165,753.91

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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.