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Finding the Fourth Proportional to 898.46, 1,348.21 and 350.61

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Solution

The fourth proportional to 898.46, 1,348.21 and 350.61 is: 526.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    898.46 : 1,348.21 = 350.61 : x
  2. Step 2: Convert to fraction form
    898.46/1,348.21 = 350.61/x
  3. Step 3: Cross multiply
    898.46x = 1,348.21 × 350.61
  4. Step 4: Simplify right side
    898.46x = 472,698.87
  5. Step 5: Solve for x
    x = 472,698.87/898.46
  6. Step 6: Final answer
    x = 526.12

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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.