Home / 396,075.76-594,236.20-129,838.32

Finding the Fourth Proportional to 396,075.76, 594,236.20 and 129,838.32

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Solution

The fourth proportional to 396,075.76, 594,236.20 and 129,838.32 is: 194,797.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,075.76 : 594,236.20 = 129,838.32 : x
  2. Step 2: Convert to fraction form
    396,075.76/594,236.20 = 129,838.32/x
  3. Step 3: Cross multiply
    396,075.76x = 594,236.20 × 129,838.32
  4. Step 4: Simplify right side
    396,075.76x = 77,154,629,891.18
  5. Step 5: Solve for x
    x = 77,154,629,891.18/396,075.76
  6. Step 6: Final answer
    x = 194,797.66

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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.