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Finding the Fourth Proportional to 172.37, 237.90 and 110.15

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Solution

The fourth proportional to 172.37, 237.90 and 110.15 is: 152.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172.37 : 237.90 = 110.15 : x
  2. Step 2: Convert to fraction form
    172.37/237.90 = 110.15/x
  3. Step 3: Cross multiply
    172.37x = 237.90 × 110.15
  4. Step 4: Simplify right side
    172.37x = 26,203.50
  5. Step 5: Solve for x
    x = 26,203.50/172.37
  6. Step 6: Final answer
    x = 152.02

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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.