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Finding the Fourth Proportional to 623.26, 933.42 and 314.15

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Solution

The fourth proportional to 623.26, 933.42 and 314.15 is: 470.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.26 : 933.42 = 314.15 : x
  2. Step 2: Convert to fraction form
    623.26/933.42 = 314.15/x
  3. Step 3: Cross multiply
    623.26x = 933.42 × 314.15
  4. Step 4: Simplify right side
    623.26x = 293,230.40
  5. Step 5: Solve for x
    x = 293,230.40/623.26
  6. Step 6: Final answer
    x = 470.48

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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.