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Finding the Fourth Proportional to 491,385.35, 737,075.55 and 191,896.34

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Solution

The fourth proportional to 491,385.35, 737,075.55 and 191,896.34 is: 287,843.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,385.35 : 737,075.55 = 191,896.34 : x
  2. Step 2: Convert to fraction form
    491,385.35/737,075.55 = 191,896.34/x
  3. Step 3: Cross multiply
    491,385.35x = 737,075.55 × 191,896.34
  4. Step 4: Simplify right side
    491,385.35x = 141,442,100,348.49
  5. Step 5: Solve for x
    x = 141,442,100,348.49/491,385.35
  6. Step 6: Final answer
    x = 287,843.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.