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Finding the Fourth Proportional to 269,051.52, 371,291.08 and 155,939.88

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Solution

The fourth proportional to 269,051.52, 371,291.08 and 155,939.88 is: 215,197.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,051.52 : 371,291.08 = 155,939.88 : x
  2. Step 2: Convert to fraction form
    269,051.52/371,291.08 = 155,939.88/x
  3. Step 3: Cross multiply
    269,051.52x = 371,291.08 × 155,939.88
  4. Step 4: Simplify right side
    269,051.52x = 57,899,086,460.27
  5. Step 5: Solve for x
    x = 57,899,086,460.27/269,051.52
  6. Step 6: Final answer
    x = 215,197.02

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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.