Home / 330,638.56-456,285.76-179,738.80

Finding the Fourth Proportional to 330,638.56, 456,285.76 and 179,738.80

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Solution

The fourth proportional to 330,638.56, 456,285.76 and 179,738.80 is: 248,042.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,638.56 : 456,285.76 = 179,738.80 : x
  2. Step 2: Convert to fraction form
    330,638.56/456,285.76 = 179,738.80/x
  3. Step 3: Cross multiply
    330,638.56x = 456,285.76 × 179,738.80
  4. Step 4: Simplify right side
    330,638.56x = 82,012,254,959.49
  5. Step 5: Solve for x
    x = 82,012,254,959.49/330,638.56
  6. Step 6: Final answer
    x = 248,042.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.