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Finding the Fourth Proportional to 434.85, 600.15 and 248.31

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Solution

The fourth proportional to 434.85, 600.15 and 248.31 is: 342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.85 : 600.15 = 248.31 : x
  2. Step 2: Convert to fraction form
    434.85/600.15 = 248.31/x
  3. Step 3: Cross multiply
    434.85x = 600.15 × 248.31
  4. Step 4: Simplify right side
    434.85x = 149,023.25
  5. Step 5: Solve for x
    x = 149,023.25/434.85
  6. Step 6: Final answer
    x = 342.70

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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.