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Finding the Fourth Proportional to 227,393.75, 313,799.12 and 125,428.72

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Solution

The fourth proportional to 227,393.75, 313,799.12 and 125,428.72 is: 173,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,393.75 : 313,799.12 = 125,428.72 : x
  2. Step 2: Convert to fraction form
    227,393.75/313,799.12 = 125,428.72/x
  3. Step 3: Cross multiply
    227,393.75x = 313,799.12 × 125,428.72
  4. Step 4: Simplify right side
    227,393.75x = 39,359,421,958.73
  5. Step 5: Solve for x
    x = 39,359,421,958.73/227,393.75
  6. Step 6: Final answer
    x = 173,089.29

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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.