Home / 300,820.41-451,179.77-140,913.45

Finding the Fourth Proportional to 300,820.41, 451,179.77 and 140,913.45

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Solution

The fourth proportional to 300,820.41, 451,179.77 and 140,913.45 is: 211,346.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,820.41 : 451,179.77 = 140,913.45 : x
  2. Step 2: Convert to fraction form
    300,820.41/451,179.77 = 140,913.45/x
  3. Step 3: Cross multiply
    300,820.41x = 451,179.77 × 140,913.45
  4. Step 4: Simplify right side
    300,820.41x = 63,577,297,256.34
  5. Step 5: Solve for x
    x = 63,577,297,256.34/300,820.41
  6. Step 6: Final answer
    x = 211,346.36

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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.