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Finding the Fourth Proportional to 270,502.80, 405,754.20 and 252,877.20

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Solution

The fourth proportional to 270,502.80, 405,754.20 and 252,877.20 is: 379,315.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,502.80 : 405,754.20 = 252,877.20 : x
  2. Step 2: Convert to fraction form
    270,502.80/405,754.20 = 252,877.20/x
  3. Step 3: Cross multiply
    270,502.80x = 405,754.20 × 252,877.20
  4. Step 4: Simplify right side
    270,502.80x = 102,605,985,984.24
  5. Step 5: Solve for x
    x = 102,605,985,984.24/270,502.80
  6. Step 6: Final answer
    x = 379,315.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.