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Finding the Fourth Proportional to 279,567.64, 419,349.48 and 167,279.16

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Solution

The fourth proportional to 279,567.64, 419,349.48 and 167,279.16 is: 250,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,567.64 : 419,349.48 = 167,279.16 : x
  2. Step 2: Convert to fraction form
    279,567.64/419,349.48 = 167,279.16/x
  3. Step 3: Cross multiply
    279,567.64x = 419,349.48 × 167,279.16
  4. Step 4: Simplify right side
    279,567.64x = 70,148,428,760.84
  5. Step 5: Solve for x
    x = 70,148,428,760.84/279,567.64
  6. Step 6: Final answer
    x = 250,917.56

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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.