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Finding the Fourth Proportional to 227,013, 313,280.12 and 125,040.76

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Solution

The fourth proportional to 227,013, 313,280.12 and 125,040.76 is: 172,557.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,013 : 313,280.12 = 125,040.76 : x
  2. Step 2: Convert to fraction form
    227,013/313,280.12 = 125,040.76/x
  3. Step 3: Cross multiply
    227,013x = 313,280.12 × 125,040.76
  4. Step 4: Simplify right side
    227,013x = 39,172,784,297.69
  5. Step 5: Solve for x
    x = 39,172,784,297.69/227,013
  6. Step 6: Final answer
    x = 172,557.45

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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.