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Finding the Fourth Proportional to 624.55, 935.62 and 349.81

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Solution

The fourth proportional to 624.55, 935.62 and 349.81 is: 524.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.55 : 935.62 = 349.81 : x
  2. Step 2: Convert to fraction form
    624.55/935.62 = 349.81/x
  3. Step 3: Cross multiply
    624.55x = 935.62 × 349.81
  4. Step 4: Simplify right side
    624.55x = 327,282.81
  5. Step 5: Solve for x
    x = 327,282.81/624.55
  6. Step 6: Final answer
    x = 524.03

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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.