Home / 392,899.44-542,048.04-223,110.48

Finding the Fourth Proportional to 392,899.44, 542,048.04 and 223,110.48

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Solution

The fourth proportional to 392,899.44, 542,048.04 and 223,110.48 is: 307,805.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,899.44 : 542,048.04 = 223,110.48 : x
  2. Step 2: Convert to fraction form
    392,899.44/542,048.04 = 223,110.48/x
  3. Step 3: Cross multiply
    392,899.44x = 542,048.04 × 223,110.48
  4. Step 4: Simplify right side
    392,899.44x = 120,936,598,387.46
  5. Step 5: Solve for x
    x = 120,936,598,387.46/392,899.44
  6. Step 6: Final answer
    x = 307,805.47

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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.