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Finding the Fourth Proportional to 180,055.34, 248,265.61 and 122,728.60

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Solution

The fourth proportional to 180,055.34, 248,265.61 and 122,728.60 is: 169,221.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,055.34 : 248,265.61 = 122,728.60 : x
  2. Step 2: Convert to fraction form
    180,055.34/248,265.61 = 122,728.60/x
  3. Step 3: Cross multiply
    180,055.34x = 248,265.61 × 122,728.60
  4. Step 4: Simplify right side
    180,055.34x = 30,469,290,746.96
  5. Step 5: Solve for x
    x = 30,469,290,746.96/180,055.34
  6. Step 6: Final answer
    x = 169,221.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.