Home / 254,492.20-381,738.30-218,722.60

Finding the Fourth Proportional to 254,492.20, 381,738.30 and 218,722.60

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Solution

The fourth proportional to 254,492.20, 381,738.30 and 218,722.60 is: 328,083.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,492.20 : 381,738.30 = 218,722.60 : x
  2. Step 2: Convert to fraction form
    254,492.20/381,738.30 = 218,722.60/x
  3. Step 3: Cross multiply
    254,492.20x = 381,738.30 × 218,722.60
  4. Step 4: Simplify right side
    254,492.20x = 83,494,793,495.58
  5. Step 5: Solve for x
    x = 83,494,793,495.58/254,492.20
  6. Step 6: Final answer
    x = 328,083.90

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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.