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Finding the Fourth Proportional to 274,487.82, 378,492.39 and 178,817.10

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Solution

The fourth proportional to 274,487.82, 378,492.39 and 178,817.10 is: 246,571.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,487.82 : 378,492.39 = 178,817.10 : x
  2. Step 2: Convert to fraction form
    274,487.82/378,492.39 = 178,817.10/x
  3. Step 3: Cross multiply
    274,487.82x = 378,492.39 × 178,817.10
  4. Step 4: Simplify right side
    274,487.82x = 67,680,911,551.87
  5. Step 5: Solve for x
    x = 67,680,911,551.87/274,487.82
  6. Step 6: Final answer
    x = 246,571.64

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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.