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Finding the Fourth Proportional to 150,004.80, 225,007.20 and 86,824.80

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Solution

The fourth proportional to 150,004.80, 225,007.20 and 86,824.80 is: 130,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,004.80 : 225,007.20 = 86,824.80 : x
  2. Step 2: Convert to fraction form
    150,004.80/225,007.20 = 86,824.80/x
  3. Step 3: Cross multiply
    150,004.80x = 225,007.20 × 86,824.80
  4. Step 4: Simplify right side
    150,004.80x = 19,536,205,138.56
  5. Step 5: Solve for x
    x = 19,536,205,138.56/150,004.80
  6. Step 6: Final answer
    x = 130,237.20

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1.5x scale

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.