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Finding the Fourth Proportional to 328,196.40, 491,310.45 and 195,008.10

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Solution

The fourth proportional to 328,196.40, 491,310.45 and 195,008.10 is: 291,927.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,196.40 : 491,310.45 = 195,008.10 : x
  2. Step 2: Convert to fraction form
    328,196.40/491,310.45 = 195,008.10/x
  3. Step 3: Cross multiply
    328,196.40x = 491,310.45 × 195,008.10
  4. Step 4: Simplify right side
    328,196.40x = 95,809,517,364.65
  5. Step 5: Solve for x
    x = 95,809,517,364.65/328,196.40
  6. Step 6: Final answer
    x = 291,927.39

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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.