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Finding the Fourth Proportional to 321,395.34, 481,617.87 and 303,422.34

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Solution

The fourth proportional to 321,395.34, 481,617.87 and 303,422.34 is: 454,684.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,395.34 : 481,617.87 = 303,422.34 : x
  2. Step 2: Convert to fraction form
    321,395.34/481,617.87 = 303,422.34/x
  3. Step 3: Cross multiply
    321,395.34x = 481,617.87 × 303,422.34
  4. Step 4: Simplify right side
    321,395.34x = 146,133,621,101.22
  5. Step 5: Solve for x
    x = 146,133,621,101.22/321,395.34
  6. Step 6: Final answer
    x = 454,684.94

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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.