Home / 289,075.91-398,935.94-161,748.77

Finding the Fourth Proportional to 289,075.91, 398,935.94 and 161,748.77

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Solution

The fourth proportional to 289,075.91, 398,935.94 and 161,748.77 is: 223,219.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,075.91 : 398,935.94 = 161,748.77 : x
  2. Step 2: Convert to fraction form
    289,075.91/398,935.94 = 161,748.77/x
  3. Step 3: Cross multiply
    289,075.91x = 398,935.94 × 161,748.77
  4. Step 4: Simplify right side
    289,075.91x = 64,527,394,800.37
  5. Step 5: Solve for x
    x = 64,527,394,800.37/289,075.91
  6. Step 6: Final answer
    x = 223,219.55

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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.