Home / 293,288.40-440,467.20-256,546.80

Finding the Fourth Proportional to 293,288.40, 440,467.20 and 256,546.80

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Solution

The fourth proportional to 293,288.40, 440,467.20 and 256,546.80 is: 385,287.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,288.40 : 440,467.20 = 256,546.80 : x
  2. Step 2: Convert to fraction form
    293,288.40/440,467.20 = 256,546.80/x
  3. Step 3: Cross multiply
    293,288.40x = 440,467.20 × 256,546.80
  4. Step 4: Simplify right side
    293,288.40x = 113,000,450,664.96
  5. Step 5: Solve for x
    x = 113,000,450,664.96/293,288.40
  6. Step 6: Final answer
    x = 385,287.83

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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.