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Finding the Fourth Proportional to 901.06, 1,351.42 and 308.11

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Solution

The fourth proportional to 901.06, 1,351.42 and 308.11 is: 462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    901.06 : 1,351.42 = 308.11 : x
  2. Step 2: Convert to fraction form
    901.06/1,351.42 = 308.11/x
  3. Step 3: Cross multiply
    901.06x = 1,351.42 × 308.11
  4. Step 4: Simplify right side
    901.06x = 416,384.40
  5. Step 5: Solve for x
    x = 416,384.40/901.06
  6. Step 6: Final answer
    x = 462.10

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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.