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Finding the Fourth Proportional to 328,049.30, 492,073.95 and 162,161.30

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Solution

The fourth proportional to 328,049.30, 492,073.95 and 162,161.30 is: 243,241.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,049.30 : 492,073.95 = 162,161.30 : x
  2. Step 2: Convert to fraction form
    328,049.30/492,073.95 = 162,161.30/x
  3. Step 3: Cross multiply
    328,049.30x = 492,073.95 × 162,161.30
  4. Step 4: Simplify right side
    328,049.30x = 79,795,351,428.14
  5. Step 5: Solve for x
    x = 79,795,351,428.14/328,049.30
  6. Step 6: Final answer
    x = 243,241.95

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Similar ratio
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1.5x scale

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.