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Finding the Fourth Proportional to 445,667.88, 668,365.20 and 161,324.40

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Solution

The fourth proportional to 445,667.88, 668,365.20 and 161,324.40 is: 241,937.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,667.88 : 668,365.20 = 161,324.40 : x
  2. Step 2: Convert to fraction form
    445,667.88/668,365.20 = 161,324.40/x
  3. Step 3: Cross multiply
    445,667.88x = 668,365.20 × 161,324.40
  4. Step 4: Simplify right side
    445,667.88x = 107,823,614,870.88
  5. Step 5: Solve for x
    x = 107,823,614,870.88/445,667.88
  6. Step 6: Final answer
    x = 241,937.15

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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.