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Finding the Fourth Proportional to 225,644.20, 338,466.30 and 215,276.20

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Solution

The fourth proportional to 225,644.20, 338,466.30 and 215,276.20 is: 322,914.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,644.20 : 338,466.30 = 215,276.20 : x
  2. Step 2: Convert to fraction form
    225,644.20/338,466.30 = 215,276.20/x
  3. Step 3: Cross multiply
    225,644.20x = 338,466.30 × 215,276.20
  4. Step 4: Simplify right side
    225,644.20x = 72,863,738,892.06
  5. Step 5: Solve for x
    x = 72,863,738,892.06/225,644.20
  6. Step 6: Final answer
    x = 322,914.30

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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.