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Finding the Fourth Proportional to 293,889.60, 440,445.60 and 260,452.80

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Solution

The fourth proportional to 293,889.60, 440,445.60 and 260,452.80 is: 390,334.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,889.60 : 440,445.60 = 260,452.80 : x
  2. Step 2: Convert to fraction form
    293,889.60/440,445.60 = 260,452.80/x
  3. Step 3: Cross multiply
    293,889.60x = 440,445.60 × 260,452.80
  4. Step 4: Simplify right side
    293,889.60x = 114,715,289,767.68
  5. Step 5: Solve for x
    x = 114,715,289,767.68/293,889.60
  6. Step 6: Final answer
    x = 390,334.64

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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.