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Finding the Fourth Proportional to 300,534, 414,749.88 and 166,398

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Solution

The fourth proportional to 300,534, 414,749.88 and 166,398 is: 229,636.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,534 : 414,749.88 = 166,398 : x
  2. Step 2: Convert to fraction form
    300,534/414,749.88 = 166,398/x
  3. Step 3: Cross multiply
    300,534x = 414,749.88 × 166,398
  4. Step 4: Simplify right side
    300,534x = 69,013,550,532.24
  5. Step 5: Solve for x
    x = 69,013,550,532.24/300,534
  6. Step 6: Final answer
    x = 229,636.42

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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.