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Finding the Fourth Proportional to 321,507.45, 482,162.67 and 222,305.13

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Solution

The fourth proportional to 321,507.45, 482,162.67 and 222,305.13 is: 333,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,507.45 : 482,162.67 = 222,305.13 : x
  2. Step 2: Convert to fraction form
    321,507.45/482,162.67 = 222,305.13/x
  3. Step 3: Cross multiply
    321,507.45x = 482,162.67 × 222,305.13
  4. Step 4: Simplify right side
    321,507.45x = 107,187,235,035.50
  5. Step 5: Solve for x
    x = 107,187,235,035.50/321,507.45
  6. Step 6: Final answer
    x = 333,389.58

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1.5x scale

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.