Finding the Fourth Proportional to 371,745.21, 557,616.79 and 105,505.98
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Solution
The fourth proportional to 371,745.21, 557,616.79 and 105,505.98 is: 158,258.68
Step by Step Solution
- Step 1: Write the proportion equation
371,745.21 : 557,616.79 = 105,505.98 : x - Step 2: Convert to fraction form
371,745.21/557,616.79 = 105,505.98/x - Step 3: Cross multiply
371,745.21x = 557,616.79 × 105,505.98 - Step 4: Simplify right side
371,745.21x = 58,831,905,893.40 - Step 5: Solve for x
x = 58,831,905,893.40/371,745.21 - Step 6: Final answer
x = 158,258.68
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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.