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Finding the Fourth Proportional to 216,510.89, 324,544.86 and 109,696.95

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Solution

The fourth proportional to 216,510.89, 324,544.86 and 109,696.95 is: 164,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,510.89 : 324,544.86 = 109,696.95 : x
  2. Step 2: Convert to fraction form
    216,510.89/324,544.86 = 109,696.95/x
  3. Step 3: Cross multiply
    216,510.89x = 324,544.86 × 109,696.95
  4. Step 4: Simplify right side
    216,510.89x = 35,601,581,280.18
  5. Step 5: Solve for x
    x = 35,601,581,280.18/216,510.89
  6. Step 6: Final answer
    x = 164,433.22

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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.