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Finding the Fourth Proportional to 386,637, 533,557.96 and 214,580.96

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Solution

The fourth proportional to 386,637, 533,557.96 and 214,580.96 is: 296,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,637 : 533,557.96 = 214,580.96 : x
  2. Step 2: Convert to fraction form
    386,637/533,557.96 = 214,580.96/x
  3. Step 3: Cross multiply
    386,637x = 533,557.96 × 214,580.96
  4. Step 4: Simplify right side
    386,637x = 114,491,379,272.44
  5. Step 5: Solve for x
    x = 114,491,379,272.44/386,637
  6. Step 6: Final answer
    x = 296,121.11

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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.