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Finding the Fourth Proportional to 623.03, 935.22 and 314.79

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Solution

The fourth proportional to 623.03, 935.22 and 314.79 is: 472.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.03 : 935.22 = 314.79 : x
  2. Step 2: Convert to fraction form
    623.03/935.22 = 314.79/x
  3. Step 3: Cross multiply
    623.03x = 935.22 × 314.79
  4. Step 4: Simplify right side
    623.03x = 294,397.90
  5. Step 5: Solve for x
    x = 294,397.90/623.03
  6. Step 6: Final answer
    x = 472.53

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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.