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Finding the Fourth Proportional to 300,003.40, 450,069.90 and 89,662.60

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Solution

The fourth proportional to 300,003.40, 450,069.90 and 89,662.60 is: 134,513.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,003.40 : 450,069.90 = 89,662.60 : x
  2. Step 2: Convert to fraction form
    300,003.40/450,069.90 = 89,662.60/x
  3. Step 3: Cross multiply
    300,003.40x = 450,069.90 × 89,662.60
  4. Step 4: Simplify right side
    300,003.40x = 40,354,437,415.74
  5. Step 5: Solve for x
    x = 40,354,437,415.74/300,003.40
  6. Step 6: Final answer
    x = 134,513.27

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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.