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Finding the Fourth Proportional to 324,952.49, 487,383.64 and 100,320.32

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Solution

The fourth proportional to 324,952.49, 487,383.64 and 100,320.32 is: 150,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,952.49 : 487,383.64 = 100,320.32 : x
  2. Step 2: Convert to fraction form
    324,952.49/487,383.64 = 100,320.32/x
  3. Step 3: Cross multiply
    324,952.49x = 487,383.64 × 100,320.32
  4. Step 4: Simplify right side
    324,952.49x = 48,894,483,695.22
  5. Step 5: Solve for x
    x = 48,894,483,695.22/324,952.49
  6. Step 6: Final answer
    x = 150,466.56

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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.