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Finding the Fourth Proportional to 324,940.68, 487,365.93 and 100,308.51

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Solution

The fourth proportional to 324,940.68, 487,365.93 and 100,308.51 is: 150,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,940.68 : 487,365.93 = 100,308.51 : x
  2. Step 2: Convert to fraction form
    324,940.68/487,365.93 = 100,308.51/x
  3. Step 3: Cross multiply
    324,940.68x = 487,365.93 × 100,308.51
  4. Step 4: Simplify right side
    324,940.68x = 48,886,950,263.06
  5. Step 5: Solve for x
    x = 48,886,950,263.06/324,940.68
  6. Step 6: Final answer
    x = 150,448.85

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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.