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Finding the Fourth Proportional to 434.32, 599.88 and 378.88

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Solution

The fourth proportional to 434.32, 599.88 and 378.88 is: 523.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.32 : 599.88 = 378.88 : x
  2. Step 2: Convert to fraction form
    434.32/599.88 = 378.88/x
  3. Step 3: Cross multiply
    434.32x = 599.88 × 378.88
  4. Step 4: Simplify right side
    434.32x = 227,282.53
  5. Step 5: Solve for x
    x = 227,282.53/434.32
  6. Step 6: Final answer
    x = 523.31

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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.