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Finding the Fourth Proportional to 374.76, 563.09 and 310.23

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Solution

The fourth proportional to 374.76, 563.09 and 310.23 is: 466.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.76 : 563.09 = 310.23 : x
  2. Step 2: Convert to fraction form
    374.76/563.09 = 310.23/x
  3. Step 3: Cross multiply
    374.76x = 563.09 × 310.23
  4. Step 4: Simplify right side
    374.76x = 174,685.86
  5. Step 5: Solve for x
    x = 174,685.86/374.76
  6. Step 6: Final answer
    x = 466.13

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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.