Finding the Fourth Proportional to 236,436.90, 354,072.15 and 157,121.70
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Solution
The fourth proportional to 236,436.90, 354,072.15 and 157,121.70 is: 235,294.99
Step by Step Solution
- Step 1: Write the proportion equation
236,436.90 : 354,072.15 = 157,121.70 : x - Step 2: Convert to fraction form
236,436.90/354,072.15 = 157,121.70/x - Step 3: Cross multiply
236,436.90x = 354,072.15 × 157,121.70 - Step 4: Simplify right side
236,436.90x = 55,632,418,130.66 - Step 5: Solve for x
x = 55,632,418,130.66/236,436.90 - Step 6: Final answer
x = 235,294.99
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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.