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Finding the Fourth Proportional to 215.86, 297.88 and 184.74

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Solution

The fourth proportional to 215.86, 297.88 and 184.74 is: 254.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    215.86 : 297.88 = 184.74 : x
  2. Step 2: Convert to fraction form
    215.86/297.88 = 184.74/x
  3. Step 3: Cross multiply
    215.86x = 297.88 × 184.74
  4. Step 4: Simplify right side
    215.86x = 55,030.35
  5. Step 5: Solve for x
    x = 55,030.35/215.86
  6. Step 6: Final answer
    x = 254.94

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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.