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Finding the Fourth Proportional to 300,867.63, 415,243.08 and 192,018.93

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Solution

The fourth proportional to 300,867.63, 415,243.08 and 192,018.93 is: 265,015.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,867.63 : 415,243.08 = 192,018.93 : x
  2. Step 2: Convert to fraction form
    300,867.63/415,243.08 = 192,018.93/x
  3. Step 3: Cross multiply
    300,867.63x = 415,243.08 × 192,018.93
  4. Step 4: Simplify right side
    300,867.63x = 79,734,530,951.41
  5. Step 5: Solve for x
    x = 79,734,530,951.41/300,867.63
  6. Step 6: Final answer
    x = 265,015.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.