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Finding the Fourth Proportional to 237.07, 355.29 and 121.24

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Solution

The fourth proportional to 237.07, 355.29 and 121.24 is: 181.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    237.07 : 355.29 = 121.24 : x
  2. Step 2: Convert to fraction form
    237.07/355.29 = 121.24/x
  3. Step 3: Cross multiply
    237.07x = 355.29 × 121.24
  4. Step 4: Simplify right side
    237.07x = 43,075.36
  5. Step 5: Solve for x
    x = 43,075.36/237.07
  6. Step 6: Final answer
    x = 181.70

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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.