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Finding the Fourth Proportional to 296,813.80, 409,664.92 and 272,902.60

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Solution

The fourth proportional to 296,813.80, 409,664.92 and 272,902.60 is: 376,662.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,813.80 : 409,664.92 = 272,902.60 : x
  2. Step 2: Convert to fraction form
    296,813.80/409,664.92 = 272,902.60/x
  3. Step 3: Cross multiply
    296,813.80x = 409,664.92 × 272,902.60
  4. Step 4: Simplify right side
    296,813.80x = 111,798,621,796.79
  5. Step 5: Solve for x
    x = 111,798,621,796.79/296,813.80
  6. Step 6: Final answer
    x = 376,662.48

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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.