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Finding the Fourth Proportional to 449.06, 672.38 and 368.87

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Solution

The fourth proportional to 449.06, 672.38 and 368.87 is: 552.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    449.06 : 672.38 = 368.87 : x
  2. Step 2: Convert to fraction form
    449.06/672.38 = 368.87/x
  3. Step 3: Cross multiply
    449.06x = 672.38 × 368.87
  4. Step 4: Simplify right side
    449.06x = 248,018.97
  5. Step 5: Solve for x
    x = 248,018.97/449.06
  6. Step 6: Final answer
    x = 552.31

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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.