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Finding the Fourth Proportional to 199,364.79, 274,914.41 and 131,294.82

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Solution

The fourth proportional to 199,364.79, 274,914.41 and 131,294.82 is: 181,049.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,364.79 : 274,914.41 = 131,294.82 : x
  2. Step 2: Convert to fraction form
    199,364.79/274,914.41 = 131,294.82/x
  3. Step 3: Cross multiply
    199,364.79x = 274,914.41 × 131,294.82
  4. Step 4: Simplify right side
    199,364.79x = 36,094,838,350.81
  5. Step 5: Solve for x
    x = 36,094,838,350.81/199,364.79
  6. Step 6: Final answer
    x = 181,049.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.