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Finding the Fourth Proportional to 202,757.36, 304,143.40 and 69,636.84

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Solution

The fourth proportional to 202,757.36, 304,143.40 and 69,636.84 is: 104,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,757.36 : 304,143.40 = 69,636.84 : x
  2. Step 2: Convert to fraction form
    202,757.36/304,143.40 = 69,636.84/x
  3. Step 3: Cross multiply
    202,757.36x = 304,143.40 × 69,636.84
  4. Step 4: Simplify right side
    202,757.36x = 21,179,585,282.86
  5. Step 5: Solve for x
    x = 21,179,585,282.86/202,757.36
  6. Step 6: Final answer
    x = 104,457.79

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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.