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Finding the Fourth Proportional to 330,689.28, 456,348.96 and 179,786.28

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Solution

The fourth proportional to 330,689.28, 456,348.96 and 179,786.28 is: 248,103.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,689.28 : 456,348.96 = 179,786.28 : x
  2. Step 2: Convert to fraction form
    330,689.28/456,348.96 = 179,786.28/x
  3. Step 3: Cross multiply
    330,689.28x = 456,348.96 × 179,786.28
  4. Step 4: Simplify right side
    330,689.28x = 82,045,281,900.27
  5. Step 5: Solve for x
    x = 82,045,281,900.27/330,689.28
  6. Step 6: Final answer
    x = 248,103.85

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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.