Home / 289,160.14-399,040.94-161,835.73

Finding the Fourth Proportional to 289,160.14, 399,040.94 and 161,835.73

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Solution

The fourth proportional to 289,160.14, 399,040.94 and 161,835.73 is: 223,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,160.14 : 399,040.94 = 161,835.73 : x
  2. Step 2: Convert to fraction form
    289,160.14/399,040.94 = 161,835.73/x
  3. Step 3: Cross multiply
    289,160.14x = 399,040.94 × 161,835.73
  4. Step 4: Simplify right side
    289,160.14x = 64,579,081,824.79
  5. Step 5: Solve for x
    x = 64,579,081,824.79/289,160.14
  6. Step 6: Final answer
    x = 223,333.28

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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.