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Finding the Fourth Proportional to 328,794, 453,808.20 and 213,872.40

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Solution

The fourth proportional to 328,794, 453,808.20 and 213,872.40 is: 295,191.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,794 : 453,808.20 = 213,872.40 : x
  2. Step 2: Convert to fraction form
    328,794/453,808.20 = 213,872.40/x
  3. Step 3: Cross multiply
    328,794x = 453,808.20 × 213,872.40
  4. Step 4: Simplify right side
    328,794x = 97,057,048,873.68
  5. Step 5: Solve for x
    x = 97,057,048,873.68/328,794
  6. Step 6: Final answer
    x = 295,191.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.