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Finding the Fourth Proportional to 623.63, 934.94 and 311.10

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Solution

The fourth proportional to 623.63, 934.94 and 311.10 is: 466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.63 : 934.94 = 311.10 : x
  2. Step 2: Convert to fraction form
    623.63/934.94 = 311.10/x
  3. Step 3: Cross multiply
    623.63x = 934.94 × 311.10
  4. Step 4: Simplify right side
    623.63x = 290,862.95
  5. Step 5: Solve for x
    x = 290,862.95/623.63
  6. Step 6: Final answer
    x = 466.41

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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.