Home / 290,186.13-400,457.64-161,124.86

Finding the Fourth Proportional to 290,186.13, 400,457.64 and 161,124.86

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Solution

The fourth proportional to 290,186.13, 400,457.64 and 161,124.86 is: 222,352.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,186.13 : 400,457.64 = 161,124.86 : x
  2. Step 2: Convert to fraction form
    290,186.13/400,457.64 = 161,124.86/x
  3. Step 3: Cross multiply
    290,186.13x = 400,457.64 × 161,124.86
  4. Step 4: Simplify right side
    290,186.13x = 64,523,681,180.93
  5. Step 5: Solve for x
    x = 64,523,681,180.93/290,186.13
  6. Step 6: Final answer
    x = 222,352.74

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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.