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Finding the Fourth Proportional to 220,837.60, 331,256.40 and 102,469.60

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Solution

The fourth proportional to 220,837.60, 331,256.40 and 102,469.60 is: 153,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,837.60 : 331,256.40 = 102,469.60 : x
  2. Step 2: Convert to fraction form
    220,837.60/331,256.40 = 102,469.60/x
  3. Step 3: Cross multiply
    220,837.60x = 331,256.40 × 102,469.60
  4. Step 4: Simplify right side
    220,837.60x = 33,943,710,805.44
  5. Step 5: Solve for x
    x = 33,943,710,805.44/220,837.60
  6. Step 6: Final answer
    x = 153,704.40

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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.