Finding the Fourth Proportional to 252,065.12, 347,845.59 and 137,345.09
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Solution
The fourth proportional to 252,065.12, 347,845.59 and 137,345.09 is: 189,533.89
Step by Step Solution
- Step 1: Write the proportion equation
252,065.12 : 347,845.59 = 137,345.09 : x - Step 2: Convert to fraction form
252,065.12/347,845.59 = 137,345.09/x - Step 3: Cross multiply
252,065.12x = 347,845.59 × 137,345.09 - Step 4: Simplify right side
252,065.12x = 47,774,882,125.43 - Step 5: Solve for x
x = 47,774,882,125.43/252,065.12 - Step 6: Final answer
x = 189,533.89
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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.