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Finding the Fourth Proportional to 316.62, 474.53 and 152.06

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Solution

The fourth proportional to 316.62, 474.53 and 152.06 is: 227.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316.62 : 474.53 = 152.06 : x
  2. Step 2: Convert to fraction form
    316.62/474.53 = 152.06/x
  3. Step 3: Cross multiply
    316.62x = 474.53 × 152.06
  4. Step 4: Simplify right side
    316.62x = 72,153.90
  5. Step 5: Solve for x
    x = 72,153.90/316.62
  6. Step 6: Final answer
    x = 227.89

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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.