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Finding the Fourth Proportional to 358.31, 537.41 and 127.35

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Solution

The fourth proportional to 358.31, 537.41 and 127.35 is: 191.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.31 : 537.41 = 127.35 : x
  2. Step 2: Convert to fraction form
    358.31/537.41 = 127.35/x
  3. Step 3: Cross multiply
    358.31x = 537.41 × 127.35
  4. Step 4: Simplify right side
    358.31x = 68,438.53
  5. Step 5: Solve for x
    x = 68,438.53/358.31
  6. Step 6: Final answer
    x = 191.01

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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.