Home / 288,814.14-398,563.61-161,490.11

Finding the Fourth Proportional to 288,814.14, 398,563.61 and 161,490.11

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Solution

The fourth proportional to 288,814.14, 398,563.61 and 161,490.11 is: 222,856.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,814.14 : 398,563.61 = 161,490.11 : x
  2. Step 2: Convert to fraction form
    288,814.14/398,563.61 = 161,490.11/x
  3. Step 3: Cross multiply
    288,814.14x = 398,563.61 × 161,490.11
  4. Step 4: Simplify right side
    288,814.14x = 64,364,078,420.63
  5. Step 5: Solve for x
    x = 64,364,078,420.63/288,814.14
  6. Step 6: Final answer
    x = 222,856.40

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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.