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Finding the Fourth Proportional to 216,184, 324,277.44 and 68,440

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Solution

The fourth proportional to 216,184, 324,277.44 and 68,440 is: 102,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,184 : 324,277.44 = 68,440 : x
  2. Step 2: Convert to fraction form
    216,184/324,277.44 = 68,440/x
  3. Step 3: Cross multiply
    216,184x = 324,277.44 × 68,440
  4. Step 4: Simplify right side
    216,184x = 22,193,547,993.60
  5. Step 5: Solve for x
    x = 22,193,547,993.60/216,184
  6. Step 6: Final answer
    x = 102,660.46

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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.