Home / 330,621.12-456,256.80-179,719.20

Finding the Fourth Proportional to 330,621.12, 456,256.80 and 179,719.20

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Solution

The fourth proportional to 330,621.12, 456,256.80 and 179,719.20 is: 248,012.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,621.12 : 456,256.80 = 179,719.20 : x
  2. Step 2: Convert to fraction form
    330,621.12/456,256.80 = 179,719.20/x
  3. Step 3: Cross multiply
    330,621.12x = 456,256.80 × 179,719.20
  4. Step 4: Simplify right side
    330,621.12x = 81,998,107,090.56
  5. Step 5: Solve for x
    x = 81,998,107,090.56/330,621.12
  6. Step 6: Final answer
    x = 248,012.31

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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.