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Finding the Fourth Proportional to 323,261.18, 445,871 and 274,526.62

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Solution

The fourth proportional to 323,261.18, 445,871 and 274,526.62 is: 378,651.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,261.18 : 445,871 = 274,526.62 : x
  2. Step 2: Convert to fraction form
    323,261.18/445,871 = 274,526.62/x
  3. Step 3: Cross multiply
    323,261.18x = 445,871 × 274,526.62
  4. Step 4: Simplify right side
    323,261.18x = 122,403,458,586.02
  5. Step 5: Solve for x
    x = 122,403,458,586.02/323,261.18
  6. Step 6: Final answer
    x = 378,651.90

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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.