Home / 251,020.81-376,544.37-191,143.20

Finding the Fourth Proportional to 251,020.81, 376,544.37 and 191,143.20

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Solution

The fourth proportional to 251,020.81, 376,544.37 and 191,143.20 is: 286,724.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,020.81 : 376,544.37 = 191,143.20 : x
  2. Step 2: Convert to fraction form
    251,020.81/376,544.37 = 191,143.20/x
  3. Step 3: Cross multiply
    251,020.81x = 376,544.37 × 191,143.20
  4. Step 4: Simplify right side
    251,020.81x = 71,973,895,823.78
  5. Step 5: Solve for x
    x = 71,973,895,823.78/251,020.81
  6. Step 6: Final answer
    x = 286,724.82

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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.