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Finding the Fourth Proportional to 170,783.60, 256,175.40 and 108,498.80

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Solution

The fourth proportional to 170,783.60, 256,175.40 and 108,498.80 is: 162,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,783.60 : 256,175.40 = 108,498.80 : x
  2. Step 2: Convert to fraction form
    170,783.60/256,175.40 = 108,498.80/x
  3. Step 3: Cross multiply
    170,783.60x = 256,175.40 × 108,498.80
  4. Step 4: Simplify right side
    170,783.60x = 27,794,723,489.52
  5. Step 5: Solve for x
    x = 27,794,723,489.52/170,783.60
  6. Step 6: Final answer
    x = 162,748.20

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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.