Home / 281,014.04-387,344.22-219,653.30

Finding the Fourth Proportional to 281,014.04, 387,344.22 and 219,653.30

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Solution

The fourth proportional to 281,014.04, 387,344.22 and 219,653.30 is: 302,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,014.04 : 387,344.22 = 219,653.30 : x
  2. Step 2: Convert to fraction form
    281,014.04/387,344.22 = 219,653.30/x
  3. Step 3: Cross multiply
    281,014.04x = 387,344.22 × 219,653.30
  4. Step 4: Simplify right side
    281,014.04x = 85,081,436,158.93
  5. Step 5: Solve for x
    x = 85,081,436,158.93/281,014.04
  6. Step 6: Final answer
    x = 302,765.78

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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.