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Finding the Fourth Proportional to 300,260.93, 450,389.57 and 120,427.56

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Solution

The fourth proportional to 300,260.93, 450,389.57 and 120,427.56 is: 180,640.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,260.93 : 450,389.57 = 120,427.56 : x
  2. Step 2: Convert to fraction form
    300,260.93/450,389.57 = 120,427.56/x
  3. Step 3: Cross multiply
    300,260.93x = 450,389.57 × 120,427.56
  4. Step 4: Simplify right side
    300,260.93x = 54,239,316,362.41
  5. Step 5: Solve for x
    x = 54,239,316,362.41/300,260.93
  6. Step 6: Final answer
    x = 180,640.61

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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.