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Finding the Fourth Proportional to 344,359.52, 516,550.94 and 91,640.26

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Solution

The fourth proportional to 344,359.52, 516,550.94 and 91,640.26 is: 137,463.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,359.52 : 516,550.94 = 91,640.26 : x
  2. Step 2: Convert to fraction form
    344,359.52/516,550.94 = 91,640.26/x
  3. Step 3: Cross multiply
    344,359.52x = 516,550.94 × 91,640.26
  4. Step 4: Simplify right side
    344,359.52x = 47,336,859,403.89
  5. Step 5: Solve for x
    x = 47,336,859,403.89/344,359.52
  6. Step 6: Final answer
    x = 137,463.48

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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.