Home / 259,997.08-390,019.38-73,007.32

Finding the Fourth Proportional to 259,997.08, 390,019.38 and 73,007.32

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Solution

The fourth proportional to 259,997.08, 390,019.38 and 73,007.32 is: 109,517.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,997.08 : 390,019.38 = 73,007.32 : x
  2. Step 2: Convert to fraction form
    259,997.08/390,019.38 = 73,007.32/x
  3. Step 3: Cross multiply
    259,997.08x = 390,019.38 × 73,007.32
  4. Step 4: Simplify right side
    259,997.08x = 28,474,269,681.86
  5. Step 5: Solve for x
    x = 28,474,269,681.86/259,997.08
  6. Step 6: Final answer
    x = 109,517.65

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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.