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Finding the Fourth Proportional to 300,588.32, 450,890.67 and 90,226.28

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Solution

The fourth proportional to 300,588.32, 450,890.67 and 90,226.28 is: 135,341.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,588.32 : 450,890.67 = 90,226.28 : x
  2. Step 2: Convert to fraction form
    300,588.32/450,890.67 = 90,226.28/x
  3. Step 3: Cross multiply
    300,588.32x = 450,890.67 × 90,226.28
  4. Step 4: Simplify right side
    300,588.32x = 40,682,187,840.81
  5. Step 5: Solve for x
    x = 40,682,187,840.81/300,588.32
  6. Step 6: Final answer
    x = 135,341.88

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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.