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Finding the Fourth Proportional to 220,466, 330,699 and 54,254

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Solution

The fourth proportional to 220,466, 330,699 and 54,254 is: 81,381

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,466 : 330,699 = 54,254 : x
  2. Step 2: Convert to fraction form
    220,466/330,699 = 54,254/x
  3. Step 3: Cross multiply
    220,466x = 330,699 × 54,254
  4. Step 4: Simplify right side
    220,466x = 17,941,743,546
  5. Step 5: Solve for x
    x = 17,941,743,546/220,466
  6. Step 6: Final answer
    x = 81,381

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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.