Finding the Fourth Proportional to 388,751.13, 582,886.12 and 151,815.19
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Solution
The fourth proportional to 388,751.13, 582,886.12 and 151,815.19 is: 227,628.84
Step by Step Solution
- Step 1: Write the proportion equation
388,751.13 : 582,886.12 = 151,815.19 : x - Step 2: Convert to fraction form
388,751.13/582,886.12 = 151,815.19/x - Step 3: Cross multiply
388,751.13x = 582,886.12 × 151,815.19 - Step 4: Simplify right side
388,751.13x = 88,490,968,513.38 - Step 5: Solve for x
x = 88,490,968,513.38/388,751.13 - Step 6: Final answer
x = 227,628.84
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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.