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Finding the Fourth Proportional to 492,273.12, 738,372.78 and 155,324.64

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Solution

The fourth proportional to 492,273.12, 738,372.78 and 155,324.64 is: 232,975.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,273.12 : 738,372.78 = 155,324.64 : x
  2. Step 2: Convert to fraction form
    492,273.12/738,372.78 = 155,324.64/x
  3. Step 3: Cross multiply
    492,273.12x = 738,372.78 × 155,324.64
  4. Step 4: Simplify right side
    492,273.12x = 114,687,486,239.30
  5. Step 5: Solve for x
    x = 114,687,486,239.30/492,273.12
  6. Step 6: Final answer
    x = 232,975.32

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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.