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Finding the Fourth Proportional to 165,480.40, 248,220.60 and 102,494.80

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Solution

The fourth proportional to 165,480.40, 248,220.60 and 102,494.80 is: 153,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,480.40 : 248,220.60 = 102,494.80 : x
  2. Step 2: Convert to fraction form
    165,480.40/248,220.60 = 102,494.80/x
  3. Step 3: Cross multiply
    165,480.40x = 248,220.60 × 102,494.80
  4. Step 4: Simplify right side
    165,480.40x = 25,441,320,752.88
  5. Step 5: Solve for x
    x = 25,441,320,752.88/165,480.40
  6. Step 6: Final answer
    x = 153,742.20

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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.