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Finding the Fourth Proportional to 395,573.88, 545,939.82 and 223,499.10

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Solution

The fourth proportional to 395,573.88, 545,939.82 and 223,499.10 is: 308,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,573.88 : 545,939.82 = 223,499.10 : x
  2. Step 2: Convert to fraction form
    395,573.88/545,939.82 = 223,499.10/x
  3. Step 3: Cross multiply
    395,573.88x = 545,939.82 × 223,499.10
  4. Step 4: Simplify right side
    395,573.88x = 122,017,058,424.16
  5. Step 5: Solve for x
    x = 122,017,058,424.16/395,573.88
  6. Step 6: Final answer
    x = 308,455.80

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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.