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Finding the Fourth Proportional to 374.01, 515.88 and 218.67

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Solution

The fourth proportional to 374.01, 515.88 and 218.67 is: 301.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.01 : 515.88 = 218.67 : x
  2. Step 2: Convert to fraction form
    374.01/515.88 = 218.67/x
  3. Step 3: Cross multiply
    374.01x = 515.88 × 218.67
  4. Step 4: Simplify right side
    374.01x = 112,807.48
  5. Step 5: Solve for x
    x = 112,807.48/374.01
  6. Step 6: Final answer
    x = 301.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.