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Finding the Fourth Proportional to 279,727.88, 419,588.72 and 167,439.40

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Solution

The fourth proportional to 279,727.88, 419,588.72 and 167,439.40 is: 251,157.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,727.88 : 419,588.72 = 167,439.40 : x
  2. Step 2: Convert to fraction form
    279,727.88/419,588.72 = 167,439.40/x
  3. Step 3: Cross multiply
    279,727.88x = 419,588.72 × 167,439.40
  4. Step 4: Simplify right side
    279,727.88x = 70,255,681,637.40
  5. Step 5: Solve for x
    x = 70,255,681,637.40/279,727.88
  6. Step 6: Final answer
    x = 251,157.24

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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.