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Finding the Fourth Proportional to 377.83, 563.21 and 357.31

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Solution

The fourth proportional to 377.83, 563.21 and 357.31 is: 532.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    377.83 : 563.21 = 357.31 : x
  2. Step 2: Convert to fraction form
    377.83/563.21 = 357.31/x
  3. Step 3: Cross multiply
    377.83x = 563.21 × 357.31
  4. Step 4: Simplify right side
    377.83x = 201,240.57
  5. Step 5: Solve for x
    x = 201,240.57/377.83
  6. Step 6: Final answer
    x = 532.62

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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.