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Finding the Fourth Proportional to 176,021.60, 263,859.60 and 87,288.80

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Solution

The fourth proportional to 176,021.60, 263,859.60 and 87,288.80 is: 130,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,021.60 : 263,859.60 = 87,288.80 : x
  2. Step 2: Convert to fraction form
    176,021.60/263,859.60 = 87,288.80/x
  3. Step 3: Cross multiply
    176,021.60x = 263,859.60 × 87,288.80
  4. Step 4: Simplify right side
    176,021.60x = 23,031,987,852.48
  5. Step 5: Solve for x
    x = 23,031,987,852.48/176,021.60
  6. Step 6: Final answer
    x = 130,847.51

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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.