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Finding the Fourth Proportional to 300,415.68, 414,579.60 and 185,711.04

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Solution

The fourth proportional to 300,415.68, 414,579.60 and 185,711.04 is: 256,284.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,415.68 : 414,579.60 = 185,711.04 : x
  2. Step 2: Convert to fraction form
    300,415.68/414,579.60 = 185,711.04/x
  3. Step 3: Cross multiply
    300,415.68x = 414,579.60 × 185,711.04
  4. Step 4: Simplify right side
    300,415.68x = 76,992,008,678.78
  5. Step 5: Solve for x
    x = 76,992,008,678.78/300,415.68
  6. Step 6: Final answer
    x = 256,284.92

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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.