Home / 254,146.20-381,219.30-139,984.80

Finding the Fourth Proportional to 254,146.20, 381,219.30 and 139,984.80

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Solution

The fourth proportional to 254,146.20, 381,219.30 and 139,984.80 is: 209,977.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,146.20 : 381,219.30 = 139,984.80 : x
  2. Step 2: Convert to fraction form
    254,146.20/381,219.30 = 139,984.80/x
  3. Step 3: Cross multiply
    254,146.20x = 381,219.30 × 139,984.80
  4. Step 4: Simplify right side
    254,146.20x = 53,364,907,466.64
  5. Step 5: Solve for x
    x = 53,364,907,466.64/254,146.20
  6. Step 6: Final answer
    x = 209,977.20

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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.