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Finding the Fourth Proportional to 242.01, 333.72 and 172.08

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Solution

The fourth proportional to 242.01, 333.72 and 172.08 is: 237.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    242.01 : 333.72 = 172.08 : x
  2. Step 2: Convert to fraction form
    242.01/333.72 = 172.08/x
  3. Step 3: Cross multiply
    242.01x = 333.72 × 172.08
  4. Step 4: Simplify right side
    242.01x = 57,426.54
  5. Step 5: Solve for x
    x = 57,426.54/242.01
  6. Step 6: Final answer
    x = 237.29

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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.