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Finding the Fourth Proportional to 434.90, 600.15 and 238.42

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Solution

The fourth proportional to 434.90, 600.15 and 238.42 is: 329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.90 : 600.15 = 238.42 : x
  2. Step 2: Convert to fraction form
    434.90/600.15 = 238.42/x
  3. Step 3: Cross multiply
    434.90x = 600.15 × 238.42
  4. Step 4: Simplify right side
    434.90x = 143,087.76
  5. Step 5: Solve for x
    x = 143,087.76/434.90
  6. Step 6: Final answer
    x = 329.01

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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.