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Finding the Fourth Proportional to 382,377.87, 527,659.79 and 212,608.35

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Solution

The fourth proportional to 382,377.87, 527,659.79 and 212,608.35 is: 293,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,377.87 : 527,659.79 = 212,608.35 : x
  2. Step 2: Convert to fraction form
    382,377.87/527,659.79 = 212,608.35/x
  3. Step 3: Cross multiply
    382,377.87x = 527,659.79 × 212,608.35
  4. Step 4: Simplify right side
    382,377.87x = 112,184,876,250.21
  5. Step 5: Solve for x
    x = 112,184,876,250.21/382,377.87
  6. Step 6: Final answer
    x = 293,387.47

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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.