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Finding the Fourth Proportional to 361,273.79, 498,551.30 and 200,128.34

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Solution

The fourth proportional to 361,273.79, 498,551.30 and 200,128.34 is: 276,173.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,273.79 : 498,551.30 = 200,128.34 : x
  2. Step 2: Convert to fraction form
    361,273.79/498,551.30 = 200,128.34/x
  3. Step 3: Cross multiply
    361,273.79x = 498,551.30 × 200,128.34
  4. Step 4: Simplify right side
    361,273.79x = 99,774,240,580.44
  5. Step 5: Solve for x
    x = 99,774,240,580.44/361,273.79
  6. Step 6: Final answer
    x = 276,173.49

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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.