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Finding the Fourth Proportional to 262,872, 362,703.96 and 155,446.56

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Solution

The fourth proportional to 262,872, 362,703.96 and 155,446.56 is: 214,481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,872 : 362,703.96 = 155,446.56 : x
  2. Step 2: Convert to fraction form
    262,872/362,703.96 = 155,446.56/x
  3. Step 3: Cross multiply
    262,872x = 362,703.96 × 155,446.56
  4. Step 4: Simplify right side
    262,872x = 56,381,082,880.38
  5. Step 5: Solve for x
    x = 56,381,082,880.38/262,872
  6. Step 6: Final answer
    x = 214,481.13

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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.