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Finding the Fourth Proportional to 220,893.25, 331,339.88 and 54,681.25

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Solution

The fourth proportional to 220,893.25, 331,339.88 and 54,681.25 is: 82,021.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,893.25 : 331,339.88 = 54,681.25 : x
  2. Step 2: Convert to fraction form
    220,893.25/331,339.88 = 54,681.25/x
  3. Step 3: Cross multiply
    220,893.25x = 331,339.88 × 54,681.25
  4. Step 4: Simplify right side
    220,893.25x = 18,118,078,813.25
  5. Step 5: Solve for x
    x = 18,118,078,813.25/220,893.25
  6. Step 6: Final answer
    x = 82,021.88

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1.5x scale

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.