Home / 330,252.96-455,788-196,116.96

Finding the Fourth Proportional to 330,252.96, 455,788 and 196,116.96

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Solution

The fourth proportional to 330,252.96, 455,788 and 196,116.96 is: 270,664.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,252.96 : 455,788 = 196,116.96 : x
  2. Step 2: Convert to fraction form
    330,252.96/455,788 = 196,116.96/x
  3. Step 3: Cross multiply
    330,252.96x = 455,788 × 196,116.96
  4. Step 4: Simplify right side
    330,252.96x = 89,387,756,964.48
  5. Step 5: Solve for x
    x = 89,387,756,964.48/330,252.96
  6. Step 6: Final answer
    x = 270,664.51

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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.