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Finding the Fourth Proportional to 328,976.28, 453,988.76 and 178,073.28

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Solution

The fourth proportional to 328,976.28, 453,988.76 and 178,073.28 is: 245,741.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,976.28 : 453,988.76 = 178,073.28 : x
  2. Step 2: Convert to fraction form
    328,976.28/453,988.76 = 178,073.28/x
  3. Step 3: Cross multiply
    328,976.28x = 453,988.76 × 178,073.28
  4. Step 4: Simplify right side
    328,976.28x = 80,843,266,685.97
  5. Step 5: Solve for x
    x = 80,843,266,685.97/328,976.28
  6. Step 6: Final answer
    x = 245,741.93

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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.