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Finding the Fourth Proportional to 260,337.26, 390,867.26 and 134,067.69

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Solution

The fourth proportional to 260,337.26, 390,867.26 and 134,067.69 is: 201,287.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,337.26 : 390,867.26 = 134,067.69 : x
  2. Step 2: Convert to fraction form
    260,337.26/390,867.26 = 134,067.69/x
  3. Step 3: Cross multiply
    260,337.26x = 390,867.26 × 134,067.69
  4. Step 4: Simplify right side
    260,337.26x = 52,402,669,974.49
  5. Step 5: Solve for x
    x = 52,402,669,974.49/260,337.26
  6. Step 6: Final answer
    x = 201,287.63

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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.