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Finding the Fourth Proportional to 233.29, 349.73 and 87.01

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Solution

The fourth proportional to 233.29, 349.73 and 87.01 is: 130.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.29 : 349.73 = 87.01 : x
  2. Step 2: Convert to fraction form
    233.29/349.73 = 87.01/x
  3. Step 3: Cross multiply
    233.29x = 349.73 × 87.01
  4. Step 4: Simplify right side
    233.29x = 30,430.01
  5. Step 5: Solve for x
    x = 30,430.01/233.29
  6. Step 6: Final answer
    x = 130.44

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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.