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Finding the Fourth Proportional to 215,397.78, 297,255.22 and 118,611.64

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Solution

The fourth proportional to 215,397.78, 297,255.22 and 118,611.64 is: 163,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,397.78 : 297,255.22 = 118,611.64 : x
  2. Step 2: Convert to fraction form
    215,397.78/297,255.22 = 118,611.64/x
  3. Step 3: Cross multiply
    215,397.78x = 297,255.22 × 118,611.64
  4. Step 4: Simplify right side
    215,397.78x = 35,257,929,217.80
  5. Step 5: Solve for x
    x = 35,257,929,217.80/215,397.78
  6. Step 6: Final answer
    x = 163,687.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.