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Finding the Fourth Proportional to 228,850.56, 315,832.47 and 126,907.98

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Solution

The fourth proportional to 228,850.56, 315,832.47 and 126,907.98 is: 175,143.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,850.56 : 315,832.47 = 126,907.98 : x
  2. Step 2: Convert to fraction form
    228,850.56/315,832.47 = 126,907.98/x
  3. Step 3: Cross multiply
    228,850.56x = 315,832.47 × 126,907.98
  4. Step 4: Simplify right side
    228,850.56x = 40,081,660,786.11
  5. Step 5: Solve for x
    x = 40,081,660,786.11/228,850.56
  6. Step 6: Final answer
    x = 175,143.38

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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.