Home / 300,930.42-451,454.65-111,392.40

Finding the Fourth Proportional to 300,930.42, 451,454.65 and 111,392.40

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Solution

The fourth proportional to 300,930.42, 451,454.65 and 111,392.40 is: 167,110.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,930.42 : 451,454.65 = 111,392.40 : x
  2. Step 2: Convert to fraction form
    300,930.42/451,454.65 = 111,392.40/x
  3. Step 3: Cross multiply
    300,930.42x = 451,454.65 × 111,392.40
  4. Step 4: Simplify right side
    300,930.42x = 50,288,615,829.70
  5. Step 5: Solve for x
    x = 50,288,615,829.70/300,930.42
  6. Step 6: Final answer
    x = 167,110.44

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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.