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Finding the Fourth Proportional to 218,058.40, 327,044.40 and 105,738.40

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Solution

The fourth proportional to 218,058.40, 327,044.40 and 105,738.40 is: 158,586.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,058.40 : 327,044.40 = 105,738.40 : x
  2. Step 2: Convert to fraction form
    218,058.40/327,044.40 = 105,738.40/x
  3. Step 3: Cross multiply
    218,058.40x = 327,044.40 × 105,738.40
  4. Step 4: Simplify right side
    218,058.40x = 34,581,151,584.96
  5. Step 5: Solve for x
    x = 34,581,151,584.96/218,058.40
  6. Step 6: Final answer
    x = 158,586.65

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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.