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Finding the Fourth Proportional to 322,296.74, 441,331.08 and 309,591.89

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Solution

The fourth proportional to 322,296.74, 441,331.08 and 309,591.89 is: 423,933.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,296.74 : 441,331.08 = 309,591.89 : x
  2. Step 2: Convert to fraction form
    322,296.74/441,331.08 = 309,591.89/x
  3. Step 3: Cross multiply
    322,296.74x = 441,331.08 × 309,591.89
  4. Step 4: Simplify right side
    322,296.74x = 136,632,523,172.94
  5. Step 5: Solve for x
    x = 136,632,523,172.94/322,296.74
  6. Step 6: Final answer
    x = 423,933.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.