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Finding the Fourth Proportional to 324,172.08, 486,219.84 and 87,533.22

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Solution

The fourth proportional to 324,172.08, 486,219.84 and 87,533.22 is: 131,289.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,172.08 : 486,219.84 = 87,533.22 : x
  2. Step 2: Convert to fraction form
    324,172.08/486,219.84 = 87,533.22/x
  3. Step 3: Cross multiply
    324,172.08x = 486,219.84 × 87,533.22
  4. Step 4: Simplify right side
    324,172.08x = 42,560,388,223.08
  5. Step 5: Solve for x
    x = 42,560,388,223.08/324,172.08
  6. Step 6: Final answer
    x = 131,289.49

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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.