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Finding the Fourth Proportional to 303,487.47, 418,816.19 and 167,521.53

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Solution

The fourth proportional to 303,487.47, 418,816.19 and 167,521.53 is: 231,181.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,487.47 : 418,816.19 = 167,521.53 : x
  2. Step 2: Convert to fraction form
    303,487.47/418,816.19 = 167,521.53/x
  3. Step 3: Cross multiply
    303,487.47x = 418,816.19 × 167,521.53
  4. Step 4: Simplify right side
    303,487.47x = 70,160,728,099.96
  5. Step 5: Solve for x
    x = 70,160,728,099.96/303,487.47
  6. Step 6: Final answer
    x = 231,181.63

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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.