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Finding the Fourth Proportional to 384,445.73, 530,532.99 and 212,375.52

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Solution

The fourth proportional to 384,445.73, 530,532.99 and 212,375.52 is: 293,077.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,445.73 : 530,532.99 = 212,375.52 : x
  2. Step 2: Convert to fraction form
    384,445.73/530,532.99 = 212,375.52/x
  3. Step 3: Cross multiply
    384,445.73x = 530,532.99 × 212,375.52
  4. Step 4: Simplify right side
    384,445.73x = 112,672,219,628.41
  5. Step 5: Solve for x
    x = 112,672,219,628.41/384,445.73
  6. Step 6: Final answer
    x = 293,077.05

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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.