Home / 288,453.91-398,030.61-161,153.50

Finding the Fourth Proportional to 288,453.91, 398,030.61 and 161,153.50

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Solution

The fourth proportional to 288,453.91, 398,030.61 and 161,153.50 is: 222,371.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,453.91 : 398,030.61 = 161,153.50 : x
  2. Step 2: Convert to fraction form
    288,453.91/398,030.61 = 161,153.50/x
  3. Step 3: Cross multiply
    288,453.91x = 398,030.61 × 161,153.50
  4. Step 4: Simplify right side
    288,453.91x = 64,144,025,908.64
  5. Step 5: Solve for x
    x = 64,144,025,908.64/288,453.91
  6. Step 6: Final answer
    x = 222,371.84

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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.