Home / 272,448.32-408,708.22-90,018.56

Finding the Fourth Proportional to 272,448.32, 408,708.22 and 90,018.56

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Solution

The fourth proportional to 272,448.32, 408,708.22 and 90,018.56 is: 135,039.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,448.32 : 408,708.22 = 90,018.56 : x
  2. Step 2: Convert to fraction form
    272,448.32/408,708.22 = 90,018.56/x
  3. Step 3: Cross multiply
    272,448.32x = 408,708.22 × 90,018.56
  4. Step 4: Simplify right side
    272,448.32x = 36,791,325,424.56
  5. Step 5: Solve for x
    x = 36,791,325,424.56/272,448.32
  6. Step 6: Final answer
    x = 135,039.65

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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.