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Finding the Fourth Proportional to 265,754, 398,632.44 and 68,762

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Solution

The fourth proportional to 265,754, 398,632.44 and 68,762 is: 103,143.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,754 : 398,632.44 = 68,762 : x
  2. Step 2: Convert to fraction form
    265,754/398,632.44 = 68,762/x
  3. Step 3: Cross multiply
    265,754x = 398,632.44 × 68,762
  4. Step 4: Simplify right side
    265,754x = 27,410,763,839.28
  5. Step 5: Solve for x
    x = 27,410,763,839.28/265,754
  6. Step 6: Final answer
    x = 103,143.37

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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.