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Finding the Fourth Proportional to 227,478.21, 313,921 and 125,504.88

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Solution

The fourth proportional to 227,478.21, 313,921 and 125,504.88 is: 173,197.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,478.21 : 313,921 = 125,504.88 : x
  2. Step 2: Convert to fraction form
    227,478.21/313,921 = 125,504.88/x
  3. Step 3: Cross multiply
    227,478.21x = 313,921 × 125,504.88
  4. Step 4: Simplify right side
    227,478.21x = 39,398,617,434.48
  5. Step 5: Solve for x
    x = 39,398,617,434.48/227,478.21
  6. Step 6: Final answer
    x = 173,197.32

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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.