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Finding the Fourth Proportional to 207,108.76, 310,723.62 and 82,468.12

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Solution

The fourth proportional to 207,108.76, 310,723.62 and 82,468.12 is: 123,726.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,108.76 : 310,723.62 = 82,468.12 : x
  2. Step 2: Convert to fraction form
    207,108.76/310,723.62 = 82,468.12/x
  3. Step 3: Cross multiply
    207,108.76x = 310,723.62 × 82,468.12
  4. Step 4: Simplify right side
    207,108.76x = 25,624,792,780.99
  5. Step 5: Solve for x
    x = 25,624,792,780.99/207,108.76
  6. Step 6: Final answer
    x = 123,726.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.