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Finding the Fourth Proportional to 389,712.44, 537,883.26 and 228,652.04

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Solution

The fourth proportional to 389,712.44, 537,883.26 and 228,652.04 is: 315,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,712.44 : 537,883.26 = 228,652.04 : x
  2. Step 2: Convert to fraction form
    389,712.44/537,883.26 = 228,652.04/x
  3. Step 3: Cross multiply
    389,712.44x = 537,883.26 × 228,652.04
  4. Step 4: Simplify right side
    389,712.44x = 122,988,104,680.85
  5. Step 5: Solve for x
    x = 122,988,104,680.85/389,712.44
  6. Step 6: Final answer
    x = 315,586.81

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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.