Home / 251,780.40-377,388.72-192,857.76

Finding the Fourth Proportional to 251,780.40, 377,388.72 and 192,857.76

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Solution

The fourth proportional to 251,780.40, 377,388.72 and 192,857.76 is: 289,070.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,780.40 : 377,388.72 = 192,857.76 : x
  2. Step 2: Convert to fraction form
    251,780.40/377,388.72 = 192,857.76/x
  3. Step 3: Cross multiply
    251,780.40x = 377,388.72 × 192,857.76
  4. Step 4: Simplify right side
    251,780.40x = 72,782,343,188.47
  5. Step 5: Solve for x
    x = 72,782,343,188.47/251,780.40
  6. Step 6: Final answer
    x = 289,070.73

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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.