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Finding the Fourth Proportional to 300,601.63, 450,908.07 and 140,589.07

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Solution

The fourth proportional to 300,601.63, 450,908.07 and 140,589.07 is: 210,886.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,601.63 : 450,908.07 = 140,589.07 : x
  2. Step 2: Convert to fraction form
    300,601.63/450,908.07 = 140,589.07/x
  3. Step 3: Cross multiply
    300,601.63x = 450,908.07 × 140,589.07
  4. Step 4: Simplify right side
    300,601.63x = 63,392,744,562.32
  5. Step 5: Solve for x
    x = 63,392,744,562.32/300,601.63
  6. Step 6: Final answer
    x = 210,886.23

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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.