Home / 289,777.18-399,886.55-160,694.83

Finding the Fourth Proportional to 289,777.18, 399,886.55 and 160,694.83

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Solution

The fourth proportional to 289,777.18, 399,886.55 and 160,694.83 is: 221,755.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,777.18 : 399,886.55 = 160,694.83 : x
  2. Step 2: Convert to fraction form
    289,777.18/399,886.55 = 160,694.83/x
  3. Step 3: Cross multiply
    289,777.18x = 399,886.55 × 160,694.83
  4. Step 4: Simplify right side
    289,777.18x = 64,259,701,171.54
  5. Step 5: Solve for x
    x = 64,259,701,171.54/289,777.18
  6. Step 6: Final answer
    x = 221,755.56

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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.