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Finding the Fourth Proportional to 351.64, 529.67 and 330.04

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Solution

The fourth proportional to 351.64, 529.67 and 330.04 is: 497.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.64 : 529.67 = 330.04 : x
  2. Step 2: Convert to fraction form
    351.64/529.67 = 330.04/x
  3. Step 3: Cross multiply
    351.64x = 529.67 × 330.04
  4. Step 4: Simplify right side
    351.64x = 174,812.29
  5. Step 5: Solve for x
    x = 174,812.29/351.64
  6. Step 6: Final answer
    x = 497.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.