Home / 543,661.21-815,284.05-178,837.94

Finding the Fourth Proportional to 543,661.21, 815,284.05 and 178,837.94

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Solution

The fourth proportional to 543,661.21, 815,284.05 and 178,837.94 is: 268,188.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,661.21 : 815,284.05 = 178,837.94 : x
  2. Step 2: Convert to fraction form
    543,661.21/815,284.05 = 178,837.94/x
  3. Step 3: Cross multiply
    543,661.21x = 815,284.05 × 178,837.94
  4. Step 4: Simplify right side
    543,661.21x = 145,803,722,055.07
  5. Step 5: Solve for x
    x = 145,803,722,055.07/543,661.21
  6. Step 6: Final answer
    x = 268,188.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.