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Finding the Fourth Proportional to 279,649.53, 419,308.38 and 111,079.22

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Solution

The fourth proportional to 279,649.53, 419,308.38 and 111,079.22 is: 166,552.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,649.53 : 419,308.38 = 111,079.22 : x
  2. Step 2: Convert to fraction form
    279,649.53/419,308.38 = 111,079.22/x
  3. Step 3: Cross multiply
    279,649.53x = 419,308.38 × 111,079.22
  4. Step 4: Simplify right side
    279,649.53x = 46,576,445,693.32
  5. Step 5: Solve for x
    x = 46,576,445,693.32/279,649.53
  6. Step 6: Final answer
    x = 166,552.92

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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.