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Finding the Fourth Proportional to 283,633.94, 391,414.92 and 154,572.46

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Solution

The fourth proportional to 283,633.94, 391,414.92 and 154,572.46 is: 213,310.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,633.94 : 391,414.92 = 154,572.46 : x
  2. Step 2: Convert to fraction form
    283,633.94/391,414.92 = 154,572.46/x
  3. Step 3: Cross multiply
    283,633.94x = 391,414.92 × 154,572.46
  4. Step 4: Simplify right side
    283,633.94x = 60,501,967,065.10
  5. Step 5: Solve for x
    x = 60,501,967,065.10/283,633.94
  6. Step 6: Final answer
    x = 213,310.04

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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.