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Finding the Fourth Proportional to 314.60, 471.44 and 152.09

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Solution

The fourth proportional to 314.60, 471.44 and 152.09 is: 227.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    314.60 : 471.44 = 152.09 : x
  2. Step 2: Convert to fraction form
    314.60/471.44 = 152.09/x
  3. Step 3: Cross multiply
    314.60x = 471.44 × 152.09
  4. Step 4: Simplify right side
    314.60x = 71,700.55
  5. Step 5: Solve for x
    x = 71,700.55/314.60
  6. Step 6: Final answer
    x = 227.91

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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.