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Finding the Fourth Proportional to 427,736.84, 590,268 and 236,738.84

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Solution

The fourth proportional to 427,736.84, 590,268 and 236,738.84 is: 326,694.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,736.84 : 590,268 = 236,738.84 : x
  2. Step 2: Convert to fraction form
    427,736.84/590,268 = 236,738.84/x
  3. Step 3: Cross multiply
    427,736.84x = 590,268 × 236,738.84
  4. Step 4: Simplify right side
    427,736.84x = 139,739,361,609.12
  5. Step 5: Solve for x
    x = 139,739,361,609.12/427,736.84
  6. Step 6: Final answer
    x = 326,694.71

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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.