Home / 438,619.07-657,796.16-228,142.19

Finding the Fourth Proportional to 438,619.07, 657,796.16 and 228,142.19

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Solution

The fourth proportional to 438,619.07, 657,796.16 and 228,142.19 is: 342,144.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,619.07 : 657,796.16 = 228,142.19 : x
  2. Step 2: Convert to fraction form
    438,619.07/657,796.16 = 228,142.19/x
  3. Step 3: Cross multiply
    438,619.07x = 657,796.16 × 228,142.19
  4. Step 4: Simplify right side
    438,619.07x = 150,071,052,086.30
  5. Step 5: Solve for x
    x = 150,071,052,086.30/438,619.07
  6. Step 6: Final answer
    x = 342,144.39

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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.