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Finding the Fourth Proportional to 389,010.98, 536,877.85 and 225,703.44

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Solution

The fourth proportional to 389,010.98, 536,877.85 and 225,703.44 is: 311,495.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,010.98 : 536,877.85 = 225,703.44 : x
  2. Step 2: Convert to fraction form
    389,010.98/536,877.85 = 225,703.44/x
  3. Step 3: Cross multiply
    389,010.98x = 536,877.85 × 225,703.44
  4. Step 4: Simplify right side
    389,010.98x = 121,175,177,604.80
  5. Step 5: Solve for x
    x = 121,175,177,604.80/389,010.98
  6. Step 6: Final answer
    x = 311,495.52

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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.