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Finding the Fourth Proportional to 293,453.60, 439,791.60 and 260,016.80

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Solution

The fourth proportional to 293,453.60, 439,791.60 and 260,016.80 is: 389,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,453.60 : 439,791.60 = 260,016.80 : x
  2. Step 2: Convert to fraction form
    293,453.60/439,791.60 = 260,016.80/x
  3. Step 3: Cross multiply
    293,453.60x = 439,791.60 × 260,016.80
  4. Step 4: Simplify right side
    293,453.60x = 114,353,204,498.88
  5. Step 5: Solve for x
    x = 114,353,204,498.88/293,453.60
  6. Step 6: Final answer
    x = 389,680.70

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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.