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Finding the Fourth Proportional to 322,084.98, 483,090.54 and 85,446.12

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Solution

The fourth proportional to 322,084.98, 483,090.54 and 85,446.12 is: 128,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,084.98 : 483,090.54 = 85,446.12 : x
  2. Step 2: Convert to fraction form
    322,084.98/483,090.54 = 85,446.12/x
  3. Step 3: Cross multiply
    322,084.98x = 483,090.54 × 85,446.12
  4. Step 4: Simplify right side
    322,084.98x = 41,278,212,251.70
  5. Step 5: Solve for x
    x = 41,278,212,251.70/322,084.98
  6. Step 6: Final answer
    x = 128,159.38

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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.