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Finding the Fourth Proportional to 300,948.89, 451,482.36 and 111,410.71

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Solution

The fourth proportional to 300,948.89, 451,482.36 and 111,410.71 is: 167,137.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,948.89 : 451,482.36 = 111,410.71 : x
  2. Step 2: Convert to fraction form
    300,948.89/451,482.36 = 111,410.71/x
  3. Step 3: Cross multiply
    300,948.89x = 451,482.36 × 111,410.71
  4. Step 4: Simplify right side
    300,948.89x = 50,299,968,733.58
  5. Step 5: Solve for x
    x = 50,299,968,733.58/300,948.89
  6. Step 6: Final answer
    x = 167,137.91

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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.