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Finding the Fourth Proportional to 331,008, 496,609.92 and 190,867.20

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Solution

The fourth proportional to 331,008, 496,609.92 and 190,867.20 is: 286,357.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,008 : 496,609.92 = 190,867.20 : x
  2. Step 2: Convert to fraction form
    331,008/496,609.92 = 190,867.20/x
  3. Step 3: Cross multiply
    331,008x = 496,609.92 × 190,867.20
  4. Step 4: Simplify right side
    331,008x = 94,786,544,922.62
  5. Step 5: Solve for x
    x = 94,786,544,922.62/331,008
  6. Step 6: Final answer
    x = 286,357.26

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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.