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Finding the Fourth Proportional to 375.65, 562.94 and 279.35

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Solution

The fourth proportional to 375.65, 562.94 and 279.35 is: 418.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.65 : 562.94 = 279.35 : x
  2. Step 2: Convert to fraction form
    375.65/562.94 = 279.35/x
  3. Step 3: Cross multiply
    375.65x = 562.94 × 279.35
  4. Step 4: Simplify right side
    375.65x = 157,255.89
  5. Step 5: Solve for x
    x = 157,255.89/375.65
  6. Step 6: Final answer
    x = 418.62

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.