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Finding the Fourth Proportional to 258,012.78, 355,887.99 and 162,439.26

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Solution

The fourth proportional to 258,012.78, 355,887.99 and 162,439.26 is: 224,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,012.78 : 355,887.99 = 162,439.26 : x
  2. Step 2: Convert to fraction form
    258,012.78/355,887.99 = 162,439.26/x
  3. Step 3: Cross multiply
    258,012.78x = 355,887.99 × 162,439.26
  4. Step 4: Simplify right side
    258,012.78x = 57,810,181,738.49
  5. Step 5: Solve for x
    x = 57,810,181,738.49/258,012.78
  6. Step 6: Final answer
    x = 224,059.37

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1.5x scale

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.