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Finding the Fourth Proportional to 269,055, 371,295.90 and 155,943.36

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Solution

The fourth proportional to 269,055, 371,295.90 and 155,943.36 is: 215,201.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,055 : 371,295.90 = 155,943.36 : x
  2. Step 2: Convert to fraction form
    269,055/371,295.90 = 155,943.36/x
  3. Step 3: Cross multiply
    269,055x = 371,295.90 × 155,943.36
  4. Step 4: Simplify right side
    269,055x = 57,901,130,200.22
  5. Step 5: Solve for x
    x = 57,901,130,200.22/269,055
  6. Step 6: Final answer
    x = 215,201.84

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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.