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Finding the Fourth Proportional to 279,735.28, 419,602.43 and 69,373.22

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Solution

The fourth proportional to 279,735.28, 419,602.43 and 69,373.22 is: 104,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,735.28 : 419,602.43 = 69,373.22 : x
  2. Step 2: Convert to fraction form
    279,735.28/419,602.43 = 69,373.22/x
  3. Step 3: Cross multiply
    279,735.28x = 419,602.43 × 69,373.22
  4. Step 4: Simplify right side
    279,735.28x = 29,109,169,764.35
  5. Step 5: Solve for x
    x = 29,109,169,764.35/279,735.28
  6. Step 6: Final answer
    x = 104,059.70

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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.