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Finding the Fourth Proportional to 316,735.05, 437,093.64 and 171,540.39

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Solution

The fourth proportional to 316,735.05, 437,093.64 and 171,540.39 is: 236,725.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,735.05 : 437,093.64 = 171,540.39 : x
  2. Step 2: Convert to fraction form
    316,735.05/437,093.64 = 171,540.39/x
  3. Step 3: Cross multiply
    316,735.05x = 437,093.64 × 171,540.39
  4. Step 4: Simplify right side
    316,735.05x = 74,979,213,472.12
  5. Step 5: Solve for x
    x = 74,979,213,472.12/316,735.05
  6. Step 6: Final answer
    x = 236,725.34

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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.