Finding the Fourth Proportional to 157,317.20, 235,630.20 and 136,581.20
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Solution
The fourth proportional to 157,317.20, 235,630.20 and 136,581.20 is: 204,571.75
Step by Step Solution
- Step 1: Write the proportion equation
157,317.20 : 235,630.20 = 136,581.20 : x - Step 2: Convert to fraction form
157,317.20/235,630.20 = 136,581.20/x - Step 3: Cross multiply
157,317.20x = 235,630.20 × 136,581.20 - Step 4: Simplify right side
157,317.20x = 32,182,655,472.24 - Step 5: Solve for x
x = 32,182,655,472.24/157,317.20 - Step 6: Final answer
x = 204,571.75
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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.