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Finding the Fourth Proportional to 300,012.59, 450,074.93 and 100,334.02

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Solution

The fourth proportional to 300,012.59, 450,074.93 and 100,334.02 is: 150,519.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,012.59 : 450,074.93 = 100,334.02 : x
  2. Step 2: Convert to fraction form
    300,012.59/450,074.93 = 100,334.02/x
  3. Step 3: Cross multiply
    300,012.59x = 450,074.93 × 100,334.02
  4. Step 4: Simplify right side
    300,012.59x = 45,157,826,526.45
  5. Step 5: Solve for x
    x = 45,157,826,526.45/300,012.59
  6. Step 6: Final answer
    x = 150,519.77

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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.