Home / 319,023.60-478,600.20-108,682.80

Finding the Fourth Proportional to 319,023.60, 478,600.20 and 108,682.80

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Solution

The fourth proportional to 319,023.60, 478,600.20 and 108,682.80 is: 163,046.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,023.60 : 478,600.20 = 108,682.80 : x
  2. Step 2: Convert to fraction form
    319,023.60/478,600.20 = 108,682.80/x
  3. Step 3: Cross multiply
    319,023.60x = 478,600.20 × 108,682.80
  4. Step 4: Simplify right side
    319,023.60x = 52,015,609,816.56
  5. Step 5: Solve for x
    x = 52,015,609,816.56/319,023.60
  6. Step 6: Final answer
    x = 163,046.28

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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.