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Finding the Fourth Proportional to 147,230, 220,845 and 36,422

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Solution

The fourth proportional to 147,230, 220,845 and 36,422 is: 54,633

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,230 : 220,845 = 36,422 : x
  2. Step 2: Convert to fraction form
    147,230/220,845 = 36,422/x
  3. Step 3: Cross multiply
    147,230x = 220,845 × 36,422
  4. Step 4: Simplify right side
    147,230x = 8,043,616,590
  5. Step 5: Solve for x
    x = 8,043,616,590/147,230
  6. Step 6: Final answer
    x = 54,633

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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.