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Finding the Fourth Proportional to 300,783.81, 415,069.47 and 179,853.78

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Solution

The fourth proportional to 300,783.81, 415,069.47 and 179,853.78 is: 248,190.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,783.81 : 415,069.47 = 179,853.78 : x
  2. Step 2: Convert to fraction form
    300,783.81/415,069.47 = 179,853.78/x
  3. Step 3: Cross multiply
    300,783.81x = 415,069.47 × 179,853.78
  4. Step 4: Simplify right side
    300,783.81x = 74,651,813,142.10
  5. Step 5: Solve for x
    x = 74,651,813,142.10/300,783.81
  6. Step 6: Final answer
    x = 248,190.93

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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.