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Finding the Fourth Proportional to 898.12, 1,347.04 and 371.08

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Solution

The fourth proportional to 898.12, 1,347.04 and 371.08 is: 556.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    898.12 : 1,347.04 = 371.08 : x
  2. Step 2: Convert to fraction form
    898.12/1,347.04 = 371.08/x
  3. Step 3: Cross multiply
    898.12x = 1,347.04 × 371.08
  4. Step 4: Simplify right side
    898.12x = 499,859.60
  5. Step 5: Solve for x
    x = 499,859.60/898.12
  6. Step 6: Final answer
    x = 556.56

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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.