Finding the Fourth Proportional to 286,409.88, 395,251.90 and 157,350.02
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Solution
The fourth proportional to 286,409.88, 395,251.90 and 157,350.02 is: 217,146.46
Step by Step Solution
- Step 1: Write the proportion equation
286,409.88 : 395,251.90 = 157,350.02 : x - Step 2: Convert to fraction form
286,409.88/395,251.90 = 157,350.02/x - Step 3: Cross multiply
286,409.88x = 395,251.90 × 157,350.02 - Step 4: Simplify right side
286,409.88x = 62,192,892,000.40 - Step 5: Solve for x
x = 62,192,892,000.40/286,409.88 - Step 6: Final answer
x = 217,146.46
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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.