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Finding the Fourth Proportional to 324,326.30, 486,326.12 and 108,108.47

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Solution

The fourth proportional to 324,326.30, 486,326.12 and 108,108.47 is: 162,108.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,326.30 : 486,326.12 = 108,108.47 : x
  2. Step 2: Convert to fraction form
    324,326.30/486,326.12 = 108,108.47/x
  3. Step 3: Cross multiply
    324,326.30x = 486,326.12 × 108,108.47
  4. Step 4: Simplify right side
    324,326.30x = 52,575,973,429.51
  5. Step 5: Solve for x
    x = 52,575,973,429.51/324,326.30
  6. Step 6: Final answer
    x = 162,108.27

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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.