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Finding the Fourth Proportional to 303,487.55, 418,812.84 and 167,521.54

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Solution

The fourth proportional to 303,487.55, 418,812.84 and 167,521.54 is: 231,179.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,487.55 : 418,812.84 = 167,521.54 : x
  2. Step 2: Convert to fraction form
    303,487.55/418,812.84 = 167,521.54/x
  3. Step 3: Cross multiply
    303,487.55x = 418,812.84 × 167,521.54
  4. Step 4: Simplify right side
    303,487.55x = 70,160,171,928.57
  5. Step 5: Solve for x
    x = 70,160,171,928.57/303,487.55
  6. Step 6: Final answer
    x = 231,179.74

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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.