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Finding the Fourth Proportional to 896.15, 1,343.52 and 348.77

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Solution

The fourth proportional to 896.15, 1,343.52 and 348.77 is: 522.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    896.15 : 1,343.52 = 348.77 : x
  2. Step 2: Convert to fraction form
    896.15/1,343.52 = 348.77/x
  3. Step 3: Cross multiply
    896.15x = 1,343.52 × 348.77
  4. Step 4: Simplify right side
    896.15x = 468,572.75
  5. Step 5: Solve for x
    x = 468,572.75/896.15
  6. Step 6: Final answer
    x = 522.88

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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.