Home / 255,664.20-383,492.70-115,422.60

Finding the Fourth Proportional to 255,664.20, 383,492.70 and 115,422.60

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Solution

The fourth proportional to 255,664.20, 383,492.70 and 115,422.60 is: 173,132.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,664.20 : 383,492.70 = 115,422.60 : x
  2. Step 2: Convert to fraction form
    255,664.20/383,492.70 = 115,422.60/x
  3. Step 3: Cross multiply
    255,664.20x = 383,492.70 × 115,422.60
  4. Step 4: Simplify right side
    255,664.20x = 44,263,724,515.02
  5. Step 5: Solve for x
    x = 44,263,724,515.02/255,664.20
  6. Step 6: Final answer
    x = 173,132.27

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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.