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Finding the Fourth Proportional to 188,480.40, 282,720.60 and 162,819.60

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Solution

The fourth proportional to 188,480.40, 282,720.60 and 162,819.60 is: 244,229.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,480.40 : 282,720.60 = 162,819.60 : x
  2. Step 2: Convert to fraction form
    188,480.40/282,720.60 = 162,819.60/x
  3. Step 3: Cross multiply
    188,480.40x = 282,720.60 × 162,819.60
  4. Step 4: Simplify right side
    188,480.40x = 46,032,455,003.76
  5. Step 5: Solve for x
    x = 46,032,455,003.76/188,480.40
  6. Step 6: Final answer
    x = 244,229.40

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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.