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Finding the Fourth Proportional to 300,715.88, 414,987.91 and 166,579.88

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Solution

The fourth proportional to 300,715.88, 414,987.91 and 166,579.88 is: 229,880.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,715.88 : 414,987.91 = 166,579.88 : x
  2. Step 2: Convert to fraction form
    300,715.88/414,987.91 = 166,579.88/x
  3. Step 3: Cross multiply
    300,715.88x = 414,987.91 × 166,579.88
  4. Step 4: Simplify right side
    300,715.88x = 69,128,633,757.86
  5. Step 5: Solve for x
    x = 69,128,633,757.86/300,715.88
  6. Step 6: Final answer
    x = 229,880.23

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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.