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Finding the Fourth Proportional to 228,625.88, 315,499.46 and 126,649.08

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Solution

The fourth proportional to 228,625.88, 315,499.46 and 126,649.08 is: 174,773.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,625.88 : 315,499.46 = 126,649.08 : x
  2. Step 2: Convert to fraction form
    228,625.88/315,499.46 = 126,649.08/x
  3. Step 3: Cross multiply
    228,625.88x = 315,499.46 × 126,649.08
  4. Step 4: Simplify right side
    228,625.88x = 39,957,715,716.25
  5. Step 5: Solve for x
    x = 39,957,715,716.25/228,625.88
  6. Step 6: Final answer
    x = 174,773.37

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1.5x scale

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.