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Finding the Fourth Proportional to 324,635.60, 486,564.60 and 166,782.80

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Solution

The fourth proportional to 324,635.60, 486,564.60 and 166,782.80 is: 249,974.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,635.60 : 486,564.60 = 166,782.80 : x
  2. Step 2: Convert to fraction form
    324,635.60/486,564.60 = 166,782.80/x
  3. Step 3: Cross multiply
    324,635.60x = 486,564.60 × 166,782.80
  4. Step 4: Simplify right side
    324,635.60x = 81,150,606,368.88
  5. Step 5: Solve for x
    x = 81,150,606,368.88/324,635.60
  6. Step 6: Final answer
    x = 249,974.45

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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.