Home / 318,212.75-439,226.65-189,241.92

Finding the Fourth Proportional to 318,212.75, 439,226.65 and 189,241.92

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Solution

The fourth proportional to 318,212.75, 439,226.65 and 189,241.92 is: 261,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,212.75 : 439,226.65 = 189,241.92 : x
  2. Step 2: Convert to fraction form
    318,212.75/439,226.65 = 189,241.92/x
  3. Step 3: Cross multiply
    318,212.75x = 439,226.65 × 189,241.92
  4. Step 4: Simplify right side
    318,212.75x = 83,120,094,797.72
  5. Step 5: Solve for x
    x = 83,120,094,797.72/318,212.75
  6. Step 6: Final answer
    x = 261,209.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.