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Finding the Fourth Proportional to 384.01, 529.90 and 226.65

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Solution

The fourth proportional to 384.01, 529.90 and 226.65 is: 312.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    384.01 : 529.90 = 226.65 : x
  2. Step 2: Convert to fraction form
    384.01/529.90 = 226.65/x
  3. Step 3: Cross multiply
    384.01x = 529.90 × 226.65
  4. Step 4: Simplify right side
    384.01x = 120,101.84
  5. Step 5: Solve for x
    x = 120,101.84/384.01
  6. Step 6: Final answer
    x = 312.76

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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.