Home / 255,933.59-383,974.16-78,466.77

Finding the Fourth Proportional to 255,933.59, 383,974.16 and 78,466.77

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Solution

The fourth proportional to 255,933.59, 383,974.16 and 78,466.77 is: 117,722.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,933.59 : 383,974.16 = 78,466.77 : x
  2. Step 2: Convert to fraction form
    255,933.59/383,974.16 = 78,466.77/x
  3. Step 3: Cross multiply
    255,933.59x = 383,974.16 × 78,466.77
  4. Step 4: Simplify right side
    255,933.59x = 30,129,211,706.33
  5. Step 5: Solve for x
    x = 30,129,211,706.33/255,933.59
  6. Step 6: Final answer
    x = 117,722.77

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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.