Home / 289,536.50-399,576.78-162,253.10

Finding the Fourth Proportional to 289,536.50, 399,576.78 and 162,253.10

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Solution

The fourth proportional to 289,536.50, 399,576.78 and 162,253.10 is: 223,918.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,536.50 : 399,576.78 = 162,253.10 : x
  2. Step 2: Convert to fraction form
    289,536.50/399,576.78 = 162,253.10/x
  3. Step 3: Cross multiply
    289,536.50x = 399,576.78 × 162,253.10
  4. Step 4: Simplify right side
    289,536.50x = 64,832,571,243.02
  5. Step 5: Solve for x
    x = 64,832,571,243.02/289,536.50
  6. Step 6: Final answer
    x = 223,918.47

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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.