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Finding the Fourth Proportional to 211,224.52, 291,489.78 and 115,734.84

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Solution

The fourth proportional to 211,224.52, 291,489.78 and 115,734.84 is: 159,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,224.52 : 291,489.78 = 115,734.84 : x
  2. Step 2: Convert to fraction form
    211,224.52/291,489.78 = 115,734.84/x
  3. Step 3: Cross multiply
    211,224.52x = 291,489.78 × 115,734.84
  4. Step 4: Simplify right side
    211,224.52x = 33,735,523,049.94
  5. Step 5: Solve for x
    x = 33,735,523,049.94/211,224.52
  6. Step 6: Final answer
    x = 159,714.05

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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.