Finding the Fourth Proportional to 245,062.14, 338,173.74 and 137,636.70
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Solution
The fourth proportional to 245,062.14, 338,173.74 and 137,636.70 is: 189,931.90
Step by Step Solution
- Step 1: Write the proportion equation
245,062.14 : 338,173.74 = 137,636.70 : x - Step 2: Convert to fraction form
245,062.14/338,173.74 = 137,636.70/x - Step 3: Cross multiply
245,062.14x = 338,173.74 × 137,636.70 - Step 4: Simplify right side
245,062.14x = 46,545,117,600.26 - Step 5: Solve for x
x = 46,545,117,600.26/245,062.14 - Step 6: Final answer
x = 189,931.90
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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.