Finding the Fourth Proportional to 315,114.75, 434,863.48 and 171,874.75
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Solution
The fourth proportional to 315,114.75, 434,863.48 and 171,874.75 is: 237,189.95
Step by Step Solution
- Step 1: Write the proportion equation
315,114.75 : 434,863.48 = 171,874.75 : x - Step 2: Convert to fraction form
315,114.75/434,863.48 = 171,874.75/x - Step 3: Cross multiply
315,114.75x = 434,863.48 × 171,874.75 - Step 4: Simplify right side
315,114.75x = 74,742,051,909.13 - Step 5: Solve for x
x = 74,742,051,909.13/315,114.75 - Step 6: Final answer
x = 237,189.95
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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.