Home / 263,988.28-364,311-149,284.08

Finding the Fourth Proportional to 263,988.28, 364,311 and 149,284.08

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Solution

The fourth proportional to 263,988.28, 364,311 and 149,284.08 is: 206,016.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,988.28 : 364,311 = 149,284.08 : x
  2. Step 2: Convert to fraction form
    263,988.28/364,311 = 149,284.08/x
  3. Step 3: Cross multiply
    263,988.28x = 364,311 × 149,284.08
  4. Step 4: Simplify right side
    263,988.28x = 54,385,832,468.88
  5. Step 5: Solve for x
    x = 54,385,832,468.88/263,988.28
  6. Step 6: Final answer
    x = 206,016.09

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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.