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Finding the Fourth Proportional to 334.07, 501.09 and 90.58

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Solution

The fourth proportional to 334.07, 501.09 and 90.58 is: 135.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    334.07 : 501.09 = 90.58 : x
  2. Step 2: Convert to fraction form
    334.07/501.09 = 90.58/x
  3. Step 3: Cross multiply
    334.07x = 501.09 × 90.58
  4. Step 4: Simplify right side
    334.07x = 45,388.73
  5. Step 5: Solve for x
    x = 45,388.73/334.07
  6. Step 6: Final answer
    x = 135.87

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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.