Home / 255,724.70-383,545.66-120,788.54

Finding the Fourth Proportional to 255,724.70, 383,545.66 and 120,788.54

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Solution

The fourth proportional to 255,724.70, 383,545.66 and 120,788.54 is: 181,163.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,724.70 : 383,545.66 = 120,788.54 : x
  2. Step 2: Convert to fraction form
    255,724.70/383,545.66 = 120,788.54/x
  3. Step 3: Cross multiply
    255,724.70x = 383,545.66 × 120,788.54
  4. Step 4: Simplify right side
    255,724.70x = 46,327,920,478.82
  5. Step 5: Solve for x
    x = 46,327,920,478.82/255,724.70
  6. Step 6: Final answer
    x = 181,163.26

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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.