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Finding the Fourth Proportional to 207,010.40, 310,515.60 and 198,845.60

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Solution

The fourth proportional to 207,010.40, 310,515.60 and 198,845.60 is: 298,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,010.40 : 310,515.60 = 198,845.60 : x
  2. Step 2: Convert to fraction form
    207,010.40/310,515.60 = 198,845.60/x
  3. Step 3: Cross multiply
    207,010.40x = 310,515.60 × 198,845.60
  4. Step 4: Simplify right side
    207,010.40x = 61,744,660,791.36
  5. Step 5: Solve for x
    x = 61,744,660,791.36/207,010.40
  6. Step 6: Final answer
    x = 298,268.40

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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.