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Finding the Fourth Proportional to 214.15, 295.50 and 135.51

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Solution

The fourth proportional to 214.15, 295.50 and 135.51 is: 186.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.15 : 295.50 = 135.51 : x
  2. Step 2: Convert to fraction form
    214.15/295.50 = 135.51/x
  3. Step 3: Cross multiply
    214.15x = 295.50 × 135.51
  4. Step 4: Simplify right side
    214.15x = 40,043.21
  5. Step 5: Solve for x
    x = 40,043.21/214.15
  6. Step 6: Final answer
    x = 186.99

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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.