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Finding the Fourth Proportional to 298,979.40, 448,245.90 and 180,625.80

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Solution

The fourth proportional to 298,979.40, 448,245.90 and 180,625.80 is: 270,803.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,979.40 : 448,245.90 = 180,625.80 : x
  2. Step 2: Convert to fraction form
    298,979.40/448,245.90 = 180,625.80/x
  3. Step 3: Cross multiply
    298,979.40x = 448,245.90 × 180,625.80
  4. Step 4: Simplify right side
    298,979.40x = 80,964,774,284.22
  5. Step 5: Solve for x
    x = 80,964,774,284.22/298,979.40
  6. Step 6: Final answer
    x = 270,803.86

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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.