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Finding the Fourth Proportional to 169,804.80, 254,979.20 and 135,033.60

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Solution

The fourth proportional to 169,804.80, 254,979.20 and 135,033.60 is: 202,766.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,804.80 : 254,979.20 = 135,033.60 : x
  2. Step 2: Convert to fraction form
    169,804.80/254,979.20 = 135,033.60/x
  3. Step 3: Cross multiply
    169,804.80x = 254,979.20 × 135,033.60
  4. Step 4: Simplify right side
    169,804.80x = 34,430,759,301.12
  5. Step 5: Solve for x
    x = 34,430,759,301.12/169,804.80
  6. Step 6: Final answer
    x = 202,766.70

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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.