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Finding the Fourth Proportional to 342,067.82, 472,221.90 and 214,813.58

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Solution

The fourth proportional to 342,067.82, 472,221.90 and 214,813.58 is: 296,548.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,067.82 : 472,221.90 = 214,813.58 : x
  2. Step 2: Convert to fraction form
    342,067.82/472,221.90 = 214,813.58/x
  3. Step 3: Cross multiply
    342,067.82x = 472,221.90 × 214,813.58
  4. Step 4: Simplify right side
    342,067.82x = 101,439,676,893.40
  5. Step 5: Solve for x
    x = 101,439,676,893.40/342,067.82
  6. Step 6: Final answer
    x = 296,548.44

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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.