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Finding the Fourth Proportional to 328,960.80, 453,965.85 and 178,057.80

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Solution

The fourth proportional to 328,960.80, 453,965.85 and 178,057.80 is: 245,719.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,960.80 : 453,965.85 = 178,057.80 : x
  2. Step 2: Convert to fraction form
    328,960.80/453,965.85 = 178,057.80/x
  3. Step 3: Cross multiply
    328,960.80x = 453,965.85 × 178,057.80
  4. Step 4: Simplify right side
    328,960.80x = 80,832,160,526.13
  5. Step 5: Solve for x
    x = 80,832,160,526.13/328,960.80
  6. Step 6: Final answer
    x = 245,719.73

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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.