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Finding the Fourth Proportional to 377.16, 517.50 and 356.52

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Solution

The fourth proportional to 377.16, 517.50 and 356.52 is: 489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.16 : 517.50 = 356.52 : x
  2. Step 2: Convert to fraction form
    377.16/517.50 = 356.52/x
  3. Step 3: Cross multiply
    377.16x = 517.50 × 356.52
  4. Step 4: Simplify right side
    377.16x = 184,499.10
  5. Step 5: Solve for x
    x = 184,499.10/377.16
  6. Step 6: Final answer
    x = 489.18

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.