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Finding the Fourth Proportional to 298,490.80, 448,081.80 and 180,295.60

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Solution

The fourth proportional to 298,490.80, 448,081.80 and 180,295.60 is: 270,652.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,490.80 : 448,081.80 = 180,295.60 : x
  2. Step 2: Convert to fraction form
    298,490.80/448,081.80 = 180,295.60/x
  3. Step 3: Cross multiply
    298,490.80x = 448,081.80 × 180,295.60
  4. Step 4: Simplify right side
    298,490.80x = 80,787,176,980.08
  5. Step 5: Solve for x
    x = 80,787,176,980.08/298,490.80
  6. Step 6: Final answer
    x = 270,652.15

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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.