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Finding the Fourth Proportional to 898.81, 1,348.98 and 351.38

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Solution

The fourth proportional to 898.81, 1,348.98 and 351.38 is: 527.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    898.81 : 1,348.98 = 351.38 : x
  2. Step 2: Convert to fraction form
    898.81/1,348.98 = 351.38/x
  3. Step 3: Cross multiply
    898.81x = 1,348.98 × 351.38
  4. Step 4: Simplify right side
    898.81x = 474,004.22
  5. Step 5: Solve for x
    x = 474,004.22/898.81
  6. Step 6: Final answer
    x = 527.37

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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.