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Finding the Fourth Proportional to 303,447.19, 418,756.72 and 167,481.40

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Solution

The fourth proportional to 303,447.19, 418,756.72 and 167,481.40 is: 231,124.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,447.19 : 418,756.72 = 167,481.40 : x
  2. Step 2: Convert to fraction form
    303,447.19/418,756.72 = 167,481.40/x
  3. Step 3: Cross multiply
    303,447.19x = 418,756.72 × 167,481.40
  4. Step 4: Simplify right side
    303,447.19x = 70,133,961,725.01
  5. Step 5: Solve for x
    x = 70,133,961,725.01/303,447.19
  6. Step 6: Final answer
    x = 231,124.11

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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.