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Finding the Fourth Proportional to 351.83, 528.02 and 159.59

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Solution

The fourth proportional to 351.83, 528.02 and 159.59 is: 239.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.83 : 528.02 = 159.59 : x
  2. Step 2: Convert to fraction form
    351.83/528.02 = 159.59/x
  3. Step 3: Cross multiply
    351.83x = 528.02 × 159.59
  4. Step 4: Simplify right side
    351.83x = 84,266.71
  5. Step 5: Solve for x
    x = 84,266.71/351.83
  6. Step 6: Final answer
    x = 239.51

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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.