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Finding the Fourth Proportional to 298,912.40, 448,368.60 and 180,522.80

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Solution

The fourth proportional to 298,912.40, 448,368.60 and 180,522.80 is: 270,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,912.40 : 448,368.60 = 180,522.80 : x
  2. Step 2: Convert to fraction form
    298,912.40/448,368.60 = 180,522.80/x
  3. Step 3: Cross multiply
    298,912.40x = 448,368.60 × 180,522.80
  4. Step 4: Simplify right side
    298,912.40x = 80,940,755,104.08
  5. Step 5: Solve for x
    x = 80,940,755,104.08/298,912.40
  6. Step 6: Final answer
    x = 270,784.20

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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.