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Finding the Fourth Proportional to 275,128.65, 412,200.90 and 235,762.65

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Solution

The fourth proportional to 275,128.65, 412,200.90 and 235,762.65 is: 353,222.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,128.65 : 412,200.90 = 235,762.65 : x
  2. Step 2: Convert to fraction form
    275,128.65/412,200.90 = 235,762.65/x
  3. Step 3: Cross multiply
    275,128.65x = 412,200.90 × 235,762.65
  4. Step 4: Simplify right side
    275,128.65x = 97,181,576,516.39
  5. Step 5: Solve for x
    x = 97,181,576,516.39/275,128.65
  6. Step 6: Final answer
    x = 353,222.31

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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.