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Finding the Fourth Proportional to 175,365.60, 263,048.40 and 81,880.80

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Solution

The fourth proportional to 175,365.60, 263,048.40 and 81,880.80 is: 122,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,365.60 : 263,048.40 = 81,880.80 : x
  2. Step 2: Convert to fraction form
    175,365.60/263,048.40 = 81,880.80/x
  3. Step 3: Cross multiply
    175,365.60x = 263,048.40 × 81,880.80
  4. Step 4: Simplify right side
    175,365.60x = 21,538,613,430.72
  5. Step 5: Solve for x
    x = 21,538,613,430.72/175,365.60
  6. Step 6: Final answer
    x = 122,821.20

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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.