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Finding the Fourth Proportional to 328,375.82, 492,563.73 and 253,605.03

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Solution

The fourth proportional to 328,375.82, 492,563.73 and 253,605.03 is: 380,407.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,375.82 : 492,563.73 = 253,605.03 : x
  2. Step 2: Convert to fraction form
    328,375.82/492,563.73 = 253,605.03/x
  3. Step 3: Cross multiply
    328,375.82x = 492,563.73 × 253,605.03
  4. Step 4: Simplify right side
    328,375.82x = 124,916,638,627.47
  5. Step 5: Solve for x
    x = 124,916,638,627.47/328,375.82
  6. Step 6: Final answer
    x = 380,407.54

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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.