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Finding the Fourth Proportional to 215.84, 293.88 and 215.16

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Solution

The fourth proportional to 215.84, 293.88 and 215.16 is: 292.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.84 : 293.88 = 215.16 : x
  2. Step 2: Convert to fraction form
    215.84/293.88 = 215.16/x
  3. Step 3: Cross multiply
    215.84x = 293.88 × 215.16
  4. Step 4: Simplify right side
    215.84x = 63,228.68
  5. Step 5: Solve for x
    x = 63,228.68/215.84
  6. Step 6: Final answer
    x = 292.94

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.