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Finding the Fourth Proportional to 211,393.92, 291,682.52 and 125,337

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Solution

The fourth proportional to 211,393.92, 291,682.52 and 125,337 is: 172,940.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,393.92 : 291,682.52 = 125,337 : x
  2. Step 2: Convert to fraction form
    211,393.92/291,682.52 = 125,337/x
  3. Step 3: Cross multiply
    211,393.92x = 291,682.52 × 125,337
  4. Step 4: Simplify right side
    211,393.92x = 36,558,612,322.58
  5. Step 5: Solve for x
    x = 36,558,612,322.58/211,393.92
  6. Step 6: Final answer
    x = 172,940.70

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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.