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Finding the Fourth Proportional to 270,221.96, 372,943.39 and 155,498.26

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Solution

The fourth proportional to 270,221.96, 372,943.39 and 155,498.26 is: 214,608.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,221.96 : 372,943.39 = 155,498.26 : x
  2. Step 2: Convert to fraction form
    270,221.96/372,943.39 = 155,498.26/x
  3. Step 3: Cross multiply
    270,221.96x = 372,943.39 × 155,498.26
  4. Step 4: Simplify right side
    270,221.96x = 57,992,048,712.35
  5. Step 5: Solve for x
    x = 57,992,048,712.35/270,221.96
  6. Step 6: Final answer
    x = 214,608.94

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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.