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Finding the Fourth Proportional to 175,260.80, 262,891.20 and 128,604.80

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Solution

The fourth proportional to 175,260.80, 262,891.20 and 128,604.80 is: 192,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,260.80 : 262,891.20 = 128,604.80 : x
  2. Step 2: Convert to fraction form
    175,260.80/262,891.20 = 128,604.80/x
  3. Step 3: Cross multiply
    175,260.80x = 262,891.20 × 128,604.80
  4. Step 4: Simplify right side
    175,260.80x = 33,809,070,197.76
  5. Step 5: Solve for x
    x = 33,809,070,197.76/175,260.80
  6. Step 6: Final answer
    x = 192,907.20

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1.5x scale

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.