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Finding the Fourth Proportional to 363,550.78, 501,570.20 and 210,505.42

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Solution

The fourth proportional to 363,550.78, 501,570.20 and 210,505.42 is: 290,422.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,550.78 : 501,570.20 = 210,505.42 : x
  2. Step 2: Convert to fraction form
    363,550.78/501,570.20 = 210,505.42/x
  3. Step 3: Cross multiply
    363,550.78x = 501,570.20 × 210,505.42
  4. Step 4: Simplify right side
    363,550.78x = 105,583,245,610.48
  5. Step 5: Solve for x
    x = 105,583,245,610.48/363,550.78
  6. Step 6: Final answer
    x = 290,422.28

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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.