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Finding the Fourth Proportional to 623.56, 933.90 and 349.24

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Solution

The fourth proportional to 623.56, 933.90 and 349.24 is: 523.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.56 : 933.90 = 349.24 : x
  2. Step 2: Convert to fraction form
    623.56/933.90 = 349.24/x
  3. Step 3: Cross multiply
    623.56x = 933.90 × 349.24
  4. Step 4: Simplify right side
    623.56x = 326,155.24
  5. Step 5: Solve for x
    x = 326,155.24/623.56
  6. Step 6: Final answer
    x = 523.05

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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.