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Finding the Fourth Proportional to 290,289.48, 400,577.37 and 162,940.47

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Solution

The fourth proportional to 290,289.48, 400,577.37 and 162,940.47 is: 224,845.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,289.48 : 400,577.37 = 162,940.47 : x
  2. Step 2: Convert to fraction form
    290,289.48/400,577.37 = 162,940.47/x
  3. Step 3: Cross multiply
    290,289.48x = 400,577.37 × 162,940.47
  4. Step 4: Simplify right side
    290,289.48x = 65,270,264,939.16
  5. Step 5: Solve for x
    x = 65,270,264,939.16/290,289.48
  6. Step 6: Final answer
    x = 224,845.44

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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.