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Finding the Fourth Proportional to 442,163.35, 663,374.22 and 142,637.32

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Solution

The fourth proportional to 442,163.35, 663,374.22 and 142,637.32 is: 213,997.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,163.35 : 663,374.22 = 142,637.32 : x
  2. Step 2: Convert to fraction form
    442,163.35/663,374.22 = 142,637.32/x
  3. Step 3: Cross multiply
    442,163.35x = 663,374.22 × 142,637.32
  4. Step 4: Simplify right side
    442,163.35x = 94,621,920,897.89
  5. Step 5: Solve for x
    x = 94,621,920,897.89/442,163.35
  6. Step 6: Final answer
    x = 213,997.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.