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Finding the Fourth Proportional to 374.84, 562.18 and 266.32

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Solution

The fourth proportional to 374.84, 562.18 and 266.32 is: 399.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.84 : 562.18 = 266.32 : x
  2. Step 2: Convert to fraction form
    374.84/562.18 = 266.32/x
  3. Step 3: Cross multiply
    374.84x = 562.18 × 266.32
  4. Step 4: Simplify right side
    374.84x = 149,719.78
  5. Step 5: Solve for x
    x = 149,719.78/374.84
  6. Step 6: Final answer
    x = 399.42

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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.