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Finding the Fourth Proportional to 233.54, 322.21 and 130.02

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Solution

The fourth proportional to 233.54, 322.21 and 130.02 is: 179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.54 : 322.21 = 130.02 : x
  2. Step 2: Convert to fraction form
    233.54/322.21 = 130.02/x
  3. Step 3: Cross multiply
    233.54x = 322.21 × 130.02
  4. Step 4: Simplify right side
    233.54x = 41,893.74
  5. Step 5: Solve for x
    x = 41,893.74/233.54
  6. Step 6: Final answer
    x = 179.39

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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.