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Finding the Fourth Proportional to 343,871.70, 515,880.26 and 104,003.50

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Solution

The fourth proportional to 343,871.70, 515,880.26 and 104,003.50 is: 156,027.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,871.70 : 515,880.26 = 104,003.50 : x
  2. Step 2: Convert to fraction form
    343,871.70/515,880.26 = 104,003.50/x
  3. Step 3: Cross multiply
    343,871.70x = 515,880.26 × 104,003.50
  4. Step 4: Simplify right side
    343,871.70x = 53,653,352,620.91
  5. Step 5: Solve for x
    x = 53,653,352,620.91/343,871.70
  6. Step 6: Final answer
    x = 156,027.24

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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.