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Finding the Fourth Proportional to 330,990, 456,775.92 and 180,096.72

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Solution

The fourth proportional to 330,990, 456,775.92 and 180,096.72 is: 248,538.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,990 : 456,775.92 = 180,096.72 : x
  2. Step 2: Convert to fraction form
    330,990/456,775.92 = 180,096.72/x
  3. Step 3: Cross multiply
    330,990x = 456,775.92 × 180,096.72
  4. Step 4: Simplify right side
    330,990x = 82,263,844,966.98
  5. Step 5: Solve for x
    x = 82,263,844,966.98/330,990
  6. Step 6: Final answer
    x = 248,538.76

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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.