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Finding the Fourth Proportional to 372.33, 555.48 and 354.92

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Solution

The fourth proportional to 372.33, 555.48 and 354.92 is: 529.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.33 : 555.48 = 354.92 : x
  2. Step 2: Convert to fraction form
    372.33/555.48 = 354.92/x
  3. Step 3: Cross multiply
    372.33x = 555.48 × 354.92
  4. Step 4: Simplify right side
    372.33x = 197,148.18
  5. Step 5: Solve for x
    x = 197,148.18/372.33
  6. Step 6: Final answer
    x = 529.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.