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Finding the Fourth Proportional to 199,295.60, 298,943.40 and 74,620.40

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Solution

The fourth proportional to 199,295.60, 298,943.40 and 74,620.40 is: 111,930.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,295.60 : 298,943.40 = 74,620.40 : x
  2. Step 2: Convert to fraction form
    199,295.60/298,943.40 = 74,620.40/x
  3. Step 3: Cross multiply
    199,295.60x = 298,943.40 × 74,620.40
  4. Step 4: Simplify right side
    199,295.60x = 22,307,276,085.36
  5. Step 5: Solve for x
    x = 22,307,276,085.36/199,295.60
  6. Step 6: Final answer
    x = 111,930.60

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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.