Finding the Fourth Proportional to 157,315.20, 235,627.20 and 136,579.20
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Solution
The fourth proportional to 157,315.20, 235,627.20 and 136,579.20 is: 204,568.75
Step by Step Solution
- Step 1: Write the proportion equation
157,315.20 : 235,627.20 = 136,579.20 : x - Step 2: Convert to fraction form
157,315.20/235,627.20 = 136,579.20/x - Step 3: Cross multiply
157,315.20x = 235,627.20 × 136,579.20 - Step 4: Simplify right side
157,315.20x = 32,181,774,474.24 - Step 5: Solve for x
x = 32,181,774,474.24/157,315.20 - Step 6: Final answer
x = 204,568.75
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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.