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Finding the Fourth Proportional to 221,668.40, 332,502.60 and 155,183.60

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Solution

The fourth proportional to 221,668.40, 332,502.60 and 155,183.60 is: 232,775.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,668.40 : 332,502.60 = 155,183.60 : x
  2. Step 2: Convert to fraction form
    221,668.40/332,502.60 = 155,183.60/x
  3. Step 3: Cross multiply
    221,668.40x = 332,502.60 × 155,183.60
  4. Step 4: Simplify right side
    221,668.40x = 51,598,950,477.36
  5. Step 5: Solve for x
    x = 51,598,950,477.36/221,668.40
  6. Step 6: Final answer
    x = 232,775.40

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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.