Home / 285,541.41-394,047.62-156,459.38

Finding the Fourth Proportional to 285,541.41, 394,047.62 and 156,459.38

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Solution

The fourth proportional to 285,541.41, 394,047.62 and 156,459.38 is: 215,914.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,541.41 : 394,047.62 = 156,459.38 : x
  2. Step 2: Convert to fraction form
    285,541.41/394,047.62 = 156,459.38/x
  3. Step 3: Cross multiply
    285,541.41x = 394,047.62 × 156,459.38
  4. Step 4: Simplify right side
    285,541.41x = 61,652,446,315.68
  5. Step 5: Solve for x
    x = 61,652,446,315.68/285,541.41
  6. Step 6: Final answer
    x = 215,914.20

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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.