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Finding the Fourth Proportional to 274,528.82, 378,817.88 and 153,676.82

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Solution

The fourth proportional to 274,528.82, 378,817.88 and 153,676.82 is: 212,056.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,528.82 : 378,817.88 = 153,676.82 : x
  2. Step 2: Convert to fraction form
    274,528.82/378,817.88 = 153,676.82/x
  3. Step 3: Cross multiply
    274,528.82x = 378,817.88 × 153,676.82
  4. Step 4: Simplify right side
    274,528.82x = 58,215,527,157.54
  5. Step 5: Solve for x
    x = 58,215,527,157.54/274,528.82
  6. Step 6: Final answer
    x = 212,056.16

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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.