Home / 255,290.56-382,992.74-77,811.41

Finding the Fourth Proportional to 255,290.56, 382,992.74 and 77,811.41

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Solution

The fourth proportional to 255,290.56, 382,992.74 and 77,811.41 is: 116,734.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,290.56 : 382,992.74 = 77,811.41 : x
  2. Step 2: Convert to fraction form
    255,290.56/382,992.74 = 77,811.41/x
  3. Step 3: Cross multiply
    255,290.56x = 382,992.74 × 77,811.41
  4. Step 4: Simplify right side
    255,290.56x = 29,801,204,738.08
  5. Step 5: Solve for x
    x = 29,801,204,738.08/255,290.56
  6. Step 6: Final answer
    x = 116,734.46

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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.