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Finding the Fourth Proportional to 439.44, 661.50 and 337.98

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Solution

The fourth proportional to 439.44, 661.50 and 337.98 is: 508.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.44 : 661.50 = 337.98 : x
  2. Step 2: Convert to fraction form
    439.44/661.50 = 337.98/x
  3. Step 3: Cross multiply
    439.44x = 661.50 × 337.98
  4. Step 4: Simplify right side
    439.44x = 223,573.77
  5. Step 5: Solve for x
    x = 223,573.77/439.44
  6. Step 6: Final answer
    x = 508.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.