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Finding the Fourth Proportional to 324,301.70, 486,193.35 and 137,159.30

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Solution

The fourth proportional to 324,301.70, 486,193.35 and 137,159.30 is: 205,629.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,301.70 : 486,193.35 = 137,159.30 : x
  2. Step 2: Convert to fraction form
    324,301.70/486,193.35 = 137,159.30/x
  3. Step 3: Cross multiply
    324,301.70x = 486,193.35 × 137,159.30
  4. Step 4: Simplify right side
    324,301.70x = 66,685,939,550.66
  5. Step 5: Solve for x
    x = 66,685,939,550.66/324,301.70
  6. Step 6: Final answer
    x = 205,629.32

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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.