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Finding the Fourth Proportional to 293,489.60, 439,845.60 and 260,052.80

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Solution

The fourth proportional to 293,489.60, 439,845.60 and 260,052.80 is: 389,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,489.60 : 439,845.60 = 260,052.80 : x
  2. Step 2: Convert to fraction form
    293,489.60/439,845.60 = 260,052.80/x
  3. Step 3: Cross multiply
    293,489.60x = 439,845.60 × 260,052.80
  4. Step 4: Simplify right side
    293,489.60x = 114,383,079,847.68
  5. Step 5: Solve for x
    x = 114,383,079,847.68/293,489.60
  6. Step 6: Final answer
    x = 389,734.70

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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.