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Finding the Fourth Proportional to 374.76, 514.80 and 325.44

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Solution

The fourth proportional to 374.76, 514.80 and 325.44 is: 447.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.76 : 514.80 = 325.44 : x
  2. Step 2: Convert to fraction form
    374.76/514.80 = 325.44/x
  3. Step 3: Cross multiply
    374.76x = 514.80 × 325.44
  4. Step 4: Simplify right side
    374.76x = 167,536.51
  5. Step 5: Solve for x
    x = 167,536.51/374.76
  6. Step 6: Final answer
    x = 447.05

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.