Home / 389,984.19-538,181.79-228,841.98

Finding the Fourth Proportional to 389,984.19, 538,181.79 and 228,841.98

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Solution

The fourth proportional to 389,984.19, 538,181.79 and 228,841.98 is: 315,804.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,984.19 : 538,181.79 = 228,841.98 : x
  2. Step 2: Convert to fraction form
    389,984.19/538,181.79 = 228,841.98/x
  3. Step 3: Cross multiply
    389,984.19x = 538,181.79 × 228,841.98
  4. Step 4: Simplify right side
    389,984.19x = 123,158,586,423.54
  5. Step 5: Solve for x
    x = 123,158,586,423.54/389,984.19
  6. Step 6: Final answer
    x = 315,804.05

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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.