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Finding the Fourth Proportional to 624.61, 937.05 and 191.75

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Solution

The fourth proportional to 624.61, 937.05 and 191.75 is: 287.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.61 : 937.05 = 191.75 : x
  2. Step 2: Convert to fraction form
    624.61/937.05 = 191.75/x
  3. Step 3: Cross multiply
    624.61x = 937.05 × 191.75
  4. Step 4: Simplify right side
    624.61x = 179,678.38
  5. Step 5: Solve for x
    x = 179,678.38/624.61
  6. Step 6: Final answer
    x = 287.67

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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.