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Finding the Fourth Proportional to 377.66, 521.59 and 372.54

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Solution

The fourth proportional to 377.66, 521.59 and 372.54 is: 514.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.66 : 521.59 = 372.54 : x
  2. Step 2: Convert to fraction form
    377.66/521.59 = 372.54/x
  3. Step 3: Cross multiply
    377.66x = 521.59 × 372.54
  4. Step 4: Simplify right side
    377.66x = 194,313.14
  5. Step 5: Solve for x
    x = 194,313.14/377.66
  6. Step 6: Final answer
    x = 514.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.