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Finding the Fourth Proportional to 328,063.96, 491,920.98 and 169,900.12

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Solution

The fourth proportional to 328,063.96, 491,920.98 and 169,900.12 is: 254,759.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,063.96 : 491,920.98 = 169,900.12 : x
  2. Step 2: Convert to fraction form
    328,063.96/491,920.98 = 169,900.12/x
  3. Step 3: Cross multiply
    328,063.96x = 491,920.98 × 169,900.12
  4. Step 4: Simplify right side
    328,063.96x = 83,577,433,532.52
  5. Step 5: Solve for x
    x = 83,577,433,532.52/328,063.96
  6. Step 6: Final answer
    x = 254,759.57

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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.