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Finding the Fourth Proportional to 255,720.80, 353,045.91 and 227,347.97

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Solution

The fourth proportional to 255,720.80, 353,045.91 and 227,347.97 is: 313,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,720.80 : 353,045.91 = 227,347.97 : x
  2. Step 2: Convert to fraction form
    255,720.80/353,045.91 = 227,347.97/x
  3. Step 3: Cross multiply
    255,720.80x = 353,045.91 × 227,347.97
  4. Step 4: Simplify right side
    255,720.80x = 80,264,269,190.07
  5. Step 5: Solve for x
    x = 80,264,269,190.07/255,720.80
  6. Step 6: Final answer
    x = 313,874.63

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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.