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Finding the Fourth Proportional to 216,736.44, 299,126.43 and 121,249.59

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Solution

The fourth proportional to 216,736.44, 299,126.43 and 121,249.59 is: 167,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,736.44 : 299,126.43 = 121,249.59 : x
  2. Step 2: Convert to fraction form
    216,736.44/299,126.43 = 121,249.59/x
  3. Step 3: Cross multiply
    216,736.44x = 299,126.43 × 121,249.59
  4. Step 4: Simplify right side
    216,736.44x = 36,268,956,995.66
  5. Step 5: Solve for x
    x = 36,268,956,995.66/216,736.44
  6. Step 6: Final answer
    x = 167,341.30

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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.