Home / 300,582.36-450,942.66-90,224.28

Finding the Fourth Proportional to 300,582.36, 450,942.66 and 90,224.28

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Solution

The fourth proportional to 300,582.36, 450,942.66 and 90,224.28 is: 135,357.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,582.36 : 450,942.66 = 90,224.28 : x
  2. Step 2: Convert to fraction form
    300,582.36/450,942.66 = 90,224.28/x
  3. Step 3: Cross multiply
    300,582.36x = 450,942.66 × 90,224.28
  4. Step 4: Simplify right side
    300,582.36x = 40,685,976,819.78
  5. Step 5: Solve for x
    x = 40,685,976,819.78/300,582.36
  6. Step 6: Final answer
    x = 135,357.17

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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.