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Finding the Fourth Proportional to 154,370, 231,555 and 43,562

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Solution

The fourth proportional to 154,370, 231,555 and 43,562 is: 65,343

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,370 : 231,555 = 43,562 : x
  2. Step 2: Convert to fraction form
    154,370/231,555 = 43,562/x
  3. Step 3: Cross multiply
    154,370x = 231,555 × 43,562
  4. Step 4: Simplify right side
    154,370x = 10,086,998,910
  5. Step 5: Solve for x
    x = 10,086,998,910/154,370
  6. Step 6: Final answer
    x = 65,343

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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.