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Finding the Fourth Proportional to 214.37, 295.62 and 172.90

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Solution

The fourth proportional to 214.37, 295.62 and 172.90 is: 238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.37 : 295.62 = 172.90 : x
  2. Step 2: Convert to fraction form
    214.37/295.62 = 172.90/x
  3. Step 3: Cross multiply
    214.37x = 295.62 × 172.90
  4. Step 4: Simplify right side
    214.37x = 51,111.22
  5. Step 5: Solve for x
    x = 51,111.22/214.37
  6. Step 6: Final answer
    x = 238.43

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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.