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Finding the Fourth Proportional to 374, 514.50 and 330.26

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Solution

The fourth proportional to 374, 514.50 and 330.26 is: 454.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    374 : 514.50 = 330.26 : x
  2. Step 2: Convert to fraction form
    374/514.50 = 330.26/x
  3. Step 3: Cross multiply
    374x = 514.50 × 330.26
  4. Step 4: Simplify right side
    374x = 169,918.77
  5. Step 5: Solve for x
    x = 169,918.77/374
  6. Step 6: Final answer
    x = 454.33

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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.