Finding the Fourth Proportional to 157,083.20, 235,279.20 and 136,347.20
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Solution
The fourth proportional to 157,083.20, 235,279.20 and 136,347.20 is: 204,220.82
Step by Step Solution
- Step 1: Write the proportion equation
157,083.20 : 235,279.20 = 136,347.20 : x - Step 2: Convert to fraction form
157,083.20/235,279.20 = 136,347.20/x - Step 3: Cross multiply
157,083.20x = 235,279.20 × 136,347.20 - Step 4: Simplify right side
157,083.20x = 32,079,660,138.24 - Step 5: Solve for x
x = 32,079,660,138.24/157,083.20 - Step 6: Final answer
x = 204,220.82
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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.