Home / 298,815.40-448,514.70-149,224.60

Finding the Fourth Proportional to 298,815.40, 448,514.70 and 149,224.60

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Solution

The fourth proportional to 298,815.40, 448,514.70 and 149,224.60 is: 223,982.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,815.40 : 448,514.70 = 149,224.60 : x
  2. Step 2: Convert to fraction form
    298,815.40/448,514.70 = 149,224.60/x
  3. Step 3: Cross multiply
    298,815.40x = 448,514.70 × 149,224.60
  4. Step 4: Simplify right side
    298,815.40x = 66,929,426,701.62
  5. Step 5: Solve for x
    x = 66,929,426,701.62/298,815.40
  6. Step 6: Final answer
    x = 223,982.52

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1.5x scale

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.