Home / 300,878.73-451,348.07-111,389.76

Finding the Fourth Proportional to 300,878.73, 451,348.07 and 111,389.76

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Solution

The fourth proportional to 300,878.73, 451,348.07 and 111,389.76 is: 167,095.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,878.73 : 451,348.07 = 111,389.76 : x
  2. Step 2: Convert to fraction form
    300,878.73/451,348.07 = 111,389.76/x
  3. Step 3: Cross multiply
    300,878.73x = 451,348.07 × 111,389.76
  4. Step 4: Simplify right side
    300,878.73x = 50,275,552,636.81
  5. Step 5: Solve for x
    x = 50,275,552,636.81/300,878.73
  6. Step 6: Final answer
    x = 167,095.74

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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.