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Finding the Fourth Proportional to 300,319.91, 450,519.50 and 110,913.40

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Solution

The fourth proportional to 300,319.91, 450,519.50 and 110,913.40 is: 166,384.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,319.91 : 450,519.50 = 110,913.40 : x
  2. Step 2: Convert to fraction form
    300,319.91/450,519.50 = 110,913.40/x
  3. Step 3: Cross multiply
    300,319.91x = 450,519.50 × 110,913.40
  4. Step 4: Simplify right side
    300,319.91x = 49,968,647,830.43
  5. Step 5: Solve for x
    x = 49,968,647,830.43/300,319.91
  6. Step 6: Final answer
    x = 166,384.74

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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.