Home / 389,849.44-537,996.64-228,707.24

Finding the Fourth Proportional to 389,849.44, 537,996.64 and 228,707.24

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Solution

The fourth proportional to 389,849.44, 537,996.64 and 228,707.24 is: 315,618.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,849.44 : 537,996.64 = 228,707.24 : x
  2. Step 2: Convert to fraction form
    389,849.44/537,996.64 = 228,707.24/x
  3. Step 3: Cross multiply
    389,849.44x = 537,996.64 × 228,707.24
  4. Step 4: Simplify right side
    389,849.44x = 123,043,726,663.67
  5. Step 5: Solve for x
    x = 123,043,726,663.67/389,849.44
  6. Step 6: Final answer
    x = 315,618.58

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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.