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Finding the Fourth Proportional to 236,902.64, 355,301.78 and 68,386.37

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Solution

The fourth proportional to 236,902.64, 355,301.78 and 68,386.37 is: 102,564.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,902.64 : 355,301.78 = 68,386.37 : x
  2. Step 2: Convert to fraction form
    236,902.64/355,301.78 = 68,386.37/x
  3. Step 3: Cross multiply
    236,902.64x = 355,301.78 × 68,386.37
  4. Step 4: Simplify right side
    236,902.64x = 24,297,796,870.30
  5. Step 5: Solve for x
    x = 24,297,796,870.30/236,902.64
  6. Step 6: Final answer
    x = 102,564.48

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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.