Home / 289,035.04-398,868.36-161,740.56

Finding the Fourth Proportional to 289,035.04, 398,868.36 and 161,740.56

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Solution

The fourth proportional to 289,035.04, 398,868.36 and 161,740.56 is: 223,201.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,035.04 : 398,868.36 = 161,740.56 : x
  2. Step 2: Convert to fraction form
    289,035.04/398,868.36 = 161,740.56/x
  3. Step 3: Cross multiply
    289,035.04x = 398,868.36 × 161,740.56
  4. Step 4: Simplify right side
    289,035.04x = 64,513,191,912.68
  5. Step 5: Solve for x
    x = 64,513,191,912.68/289,035.04
  6. Step 6: Final answer
    x = 223,201.98

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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.