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Finding the Fourth Proportional to 267.86, 401.30 and 152.16

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Solution

The fourth proportional to 267.86, 401.30 and 152.16 is: 227.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.86 : 401.30 = 152.16 : x
  2. Step 2: Convert to fraction form
    267.86/401.30 = 152.16/x
  3. Step 3: Cross multiply
    267.86x = 401.30 × 152.16
  4. Step 4: Simplify right side
    267.86x = 61,061.81
  5. Step 5: Solve for x
    x = 61,061.81/267.86
  6. Step 6: Final answer
    x = 227.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.