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Finding the Fourth Proportional to 384,227.19, 530,241.87 and 212,144.58

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Solution

The fourth proportional to 384,227.19, 530,241.87 and 212,144.58 is: 292,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,227.19 : 530,241.87 = 212,144.58 : x
  2. Step 2: Convert to fraction form
    384,227.19/530,241.87 = 212,144.58/x
  3. Step 3: Cross multiply
    384,227.19x = 530,241.87 × 212,144.58
  4. Step 4: Simplify right side
    384,227.19x = 112,487,938,809.57
  5. Step 5: Solve for x
    x = 112,487,938,809.57/384,227.19
  6. Step 6: Final answer
    x = 292,764.13

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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.