Home / 260,632.08-390,997.68-89,808.48

Finding the Fourth Proportional to 260,632.08, 390,997.68 and 89,808.48

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Solution

The fourth proportional to 260,632.08, 390,997.68 and 89,808.48 is: 134,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,632.08 : 390,997.68 = 89,808.48 : x
  2. Step 2: Convert to fraction form
    260,632.08/390,997.68 = 89,808.48/x
  3. Step 3: Cross multiply
    260,632.08x = 390,997.68 × 89,808.48
  4. Step 4: Simplify right side
    260,632.08x = 35,114,907,324.33
  5. Step 5: Solve for x
    x = 35,114,907,324.33/260,632.08
  6. Step 6: Final answer
    x = 134,729.80

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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.