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Finding the Fourth Proportional to 227,250.78, 313,616.79 and 126,649.50

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Solution

The fourth proportional to 227,250.78, 313,616.79 and 126,649.50 is: 174,782.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,250.78 : 313,616.79 = 126,649.50 : x
  2. Step 2: Convert to fraction form
    227,250.78/313,616.79 = 126,649.50/x
  3. Step 3: Cross multiply
    227,250.78x = 313,616.79 × 126,649.50
  4. Step 4: Simplify right side
    227,250.78x = 39,719,409,645.11
  5. Step 5: Solve for x
    x = 39,719,409,645.11/227,250.78
  6. Step 6: Final answer
    x = 174,782.28

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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.