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Finding the Fourth Proportional to 372.48, 557.10 and 304.44

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Solution

The fourth proportional to 372.48, 557.10 and 304.44 is: 455.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.48 : 557.10 = 304.44 : x
  2. Step 2: Convert to fraction form
    372.48/557.10 = 304.44/x
  3. Step 3: Cross multiply
    372.48x = 557.10 × 304.44
  4. Step 4: Simplify right side
    372.48x = 169,603.52
  5. Step 5: Solve for x
    x = 169,603.52/372.48
  6. Step 6: Final answer
    x = 455.34

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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.