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Finding the Fourth Proportional to 324,991.60, 487,533.60 and 100,370.32

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Solution

The fourth proportional to 324,991.60, 487,533.60 and 100,370.32 is: 150,569.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,991.60 : 487,533.60 = 100,370.32 : x
  2. Step 2: Convert to fraction form
    324,991.60/487,533.60 = 100,370.32/x
  3. Step 3: Cross multiply
    324,991.60x = 487,533.60 × 100,370.32
  4. Step 4: Simplify right side
    324,991.60x = 48,933,903,442.75
  5. Step 5: Solve for x
    x = 48,933,903,442.75/324,991.60
  6. Step 6: Final answer
    x = 150,569.75

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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.