Home / 389,851.44-537,999.40-228,709.24

Finding the Fourth Proportional to 389,851.44, 537,999.40 and 228,709.24

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Solution

The fourth proportional to 389,851.44, 537,999.40 and 228,709.24 is: 315,621.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,851.44 : 537,999.40 = 228,709.24 : x
  2. Step 2: Convert to fraction form
    389,851.44/537,999.40 = 228,709.24/x
  3. Step 3: Cross multiply
    389,851.44x = 537,999.40 × 228,709.24
  4. Step 4: Simplify right side
    389,851.44x = 123,045,433,894.46
  5. Step 5: Solve for x
    x = 123,045,433,894.46/389,851.44
  6. Step 6: Final answer
    x = 315,621.34

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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.