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Finding the Fourth Proportional to 371.02, 512.11 and 260.52

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Solution

The fourth proportional to 371.02, 512.11 and 260.52 is: 359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.02 : 512.11 = 260.52 : x
  2. Step 2: Convert to fraction form
    371.02/512.11 = 260.52/x
  3. Step 3: Cross multiply
    371.02x = 512.11 × 260.52
  4. Step 4: Simplify right side
    371.02x = 133,411.03
  5. Step 5: Solve for x
    x = 133,411.03/371.02
  6. Step 6: Final answer
    x = 359.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.