Home / 268,131.60-402,416.10-259,383.60

Finding the Fourth Proportional to 268,131.60, 402,416.10 and 259,383.60

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Solution

The fourth proportional to 268,131.60, 402,416.10 and 259,383.60 is: 389,286.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,131.60 : 402,416.10 = 259,383.60 : x
  2. Step 2: Convert to fraction form
    268,131.60/402,416.10 = 259,383.60/x
  3. Step 3: Cross multiply
    268,131.60x = 402,416.10 × 259,383.60
  4. Step 4: Simplify right side
    268,131.60x = 104,380,136,715.96
  5. Step 5: Solve for x
    x = 104,380,136,715.96/268,131.60
  6. Step 6: Final answer
    x = 389,286.96

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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.