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Finding the Fourth Proportional to 214.63, 295.94 and 155.50

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Solution

The fourth proportional to 214.63, 295.94 and 155.50 is: 214.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.63 : 295.94 = 155.50 : x
  2. Step 2: Convert to fraction form
    214.63/295.94 = 155.50/x
  3. Step 3: Cross multiply
    214.63x = 295.94 × 155.50
  4. Step 4: Simplify right side
    214.63x = 46,017.58
  5. Step 5: Solve for x
    x = 46,017.58/214.63
  6. Step 6: Final answer
    x = 214.41

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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.