Home / 389,944.54-538,124.82-211,096.54

Finding the Fourth Proportional to 389,944.54, 538,124.82 and 211,096.54

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Solution

The fourth proportional to 389,944.54, 538,124.82 and 211,096.54 is: 291,313.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,944.54 : 538,124.82 = 211,096.54 : x
  2. Step 2: Convert to fraction form
    389,944.54/538,124.82 = 211,096.54/x
  3. Step 3: Cross multiply
    389,944.54x = 538,124.82 × 211,096.54
  4. Step 4: Simplify right side
    389,944.54x = 113,596,287,590.12
  5. Step 5: Solve for x
    x = 113,596,287,590.12/389,944.54
  6. Step 6: Final answer
    x = 291,313.96

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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.