Finding the Fourth Proportional to 343,963.34, 515,745.75 and 133,354.70
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Solution
The fourth proportional to 343,963.34, 515,745.75 and 133,354.70 is: 199,954.80
Step by Step Solution
- Step 1: Write the proportion equation
343,963.34 : 515,745.75 = 133,354.70 : x - Step 2: Convert to fraction form
343,963.34/515,745.75 = 133,354.70/x - Step 3: Cross multiply
343,963.34x = 515,745.75 × 133,354.70 - Step 4: Simplify right side
343,963.34x = 68,777,119,767.53 - Step 5: Solve for x
x = 68,777,119,767.53/343,963.34 - Step 6: Final answer
x = 199,954.80
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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.