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Finding the Fourth Proportional to 363,998.73, 502,319.93 and 211,127.43

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Solution

The fourth proportional to 363,998.73, 502,319.93 and 211,127.43 is: 291,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,998.73 : 502,319.93 = 211,127.43 : x
  2. Step 2: Convert to fraction form
    363,998.73/502,319.93 = 211,127.43/x
  3. Step 3: Cross multiply
    363,998.73x = 502,319.93 × 211,127.43
  4. Step 4: Simplify right side
    363,998.73x = 106,053,512,291.44
  5. Step 5: Solve for x
    x = 106,053,512,291.44/363,998.73
  6. Step 6: Final answer
    x = 291,356.82

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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.