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Finding the Fourth Proportional to 399.74, 600.12 and 383.34

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Solution

The fourth proportional to 399.74, 600.12 and 383.34 is: 575.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.74 : 600.12 = 383.34 : x
  2. Step 2: Convert to fraction form
    399.74/600.12 = 383.34/x
  3. Step 3: Cross multiply
    399.74x = 600.12 × 383.34
  4. Step 4: Simplify right side
    399.74x = 230,050.00
  5. Step 5: Solve for x
    x = 230,050.00/399.74
  6. Step 6: Final answer
    x = 575.50

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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.