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Finding the Fourth Proportional to 154,134, 231,201 and 43,326

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Solution

The fourth proportional to 154,134, 231,201 and 43,326 is: 64,989

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,134 : 231,201 = 43,326 : x
  2. Step 2: Convert to fraction form
    154,134/231,201 = 43,326/x
  3. Step 3: Cross multiply
    154,134x = 231,201 × 43,326
  4. Step 4: Simplify right side
    154,134x = 10,017,014,526
  5. Step 5: Solve for x
    x = 10,017,014,526/154,134
  6. Step 6: Final answer
    x = 64,989

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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.