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Finding the Fourth Proportional to 170,187.60, 255,378.60 and 117,634.80

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Solution

The fourth proportional to 170,187.60, 255,378.60 and 117,634.80 is: 176,519.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,187.60 : 255,378.60 = 117,634.80 : x
  2. Step 2: Convert to fraction form
    170,187.60/255,378.60 = 117,634.80/x
  3. Step 3: Cross multiply
    170,187.60x = 255,378.60 × 117,634.80
  4. Step 4: Simplify right side
    170,187.60x = 30,041,410,535.28
  5. Step 5: Solve for x
    x = 30,041,410,535.28/170,187.60
  6. Step 6: Final answer
    x = 176,519.39

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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.