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Finding the Fourth Proportional to 284,057.62, 391,944.90 and 170,887.66

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Solution

The fourth proportional to 284,057.62, 391,944.90 and 170,887.66 is: 235,792.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,057.62 : 391,944.90 = 170,887.66 : x
  2. Step 2: Convert to fraction form
    284,057.62/391,944.90 = 170,887.66/x
  3. Step 3: Cross multiply
    284,057.62x = 391,944.90 × 170,887.66
  4. Step 4: Simplify right side
    284,057.62x = 66,978,546,809.93
  5. Step 5: Solve for x
    x = 66,978,546,809.93/284,057.62
  6. Step 6: Final answer
    x = 235,792.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.