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Finding the Fourth Proportional to 300,811.62, 415,080.55 and 179,908.80

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Solution

The fourth proportional to 300,811.62, 415,080.55 and 179,908.80 is: 248,250.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,811.62 : 415,080.55 = 179,908.80 : x
  2. Step 2: Convert to fraction form
    300,811.62/415,080.55 = 179,908.80/x
  3. Step 3: Cross multiply
    300,811.62x = 415,080.55 × 179,908.80
  4. Step 4: Simplify right side
    300,811.62x = 74,676,642,322.17
  5. Step 5: Solve for x
    x = 74,676,642,322.17/300,811.62
  6. Step 6: Final answer
    x = 248,250.52

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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.