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Finding the Fourth Proportional to 216,806.54, 299,185.52 and 120,014.61

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Solution

The fourth proportional to 216,806.54, 299,185.52 and 120,014.61 is: 165,616.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,806.54 : 299,185.52 = 120,014.61 : x
  2. Step 2: Convert to fraction form
    216,806.54/299,185.52 = 120,014.61/x
  3. Step 3: Cross multiply
    216,806.54x = 299,185.52 × 120,014.61
  4. Step 4: Simplify right side
    216,806.54x = 35,906,632,900.37
  5. Step 5: Solve for x
    x = 35,906,632,900.37/216,806.54
  6. Step 6: Final answer
    x = 165,616.01

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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.