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Finding the Fourth Proportional to 328,556.32, 492,759.15 and 91,922.92

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Solution

The fourth proportional to 328,556.32, 492,759.15 and 91,922.92 is: 137,863.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,556.32 : 492,759.15 = 91,922.92 : x
  2. Step 2: Convert to fraction form
    328,556.32/492,759.15 = 91,922.92/x
  3. Step 3: Cross multiply
    328,556.32x = 492,759.15 × 91,922.92
  4. Step 4: Simplify right side
    328,556.32x = 45,295,859,924.72
  5. Step 5: Solve for x
    x = 45,295,859,924.72/328,556.32
  6. Step 6: Final answer
    x = 137,863.30

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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.