Finding the Fourth Proportional to 286,122.96, 394,844.76 and 158,803.92
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Solution
The fourth proportional to 286,122.96, 394,844.76 and 158,803.92 is: 219,146.68
Step by Step Solution
- Step 1: Write the proportion equation
286,122.96 : 394,844.76 = 158,803.92 : x - Step 2: Convert to fraction form
286,122.96/394,844.76 = 158,803.92/x - Step 3: Cross multiply
286,122.96x = 394,844.76 × 158,803.92 - Step 4: Simplify right side
286,122.96x = 62,702,895,679.46 - Step 5: Solve for x
x = 62,702,895,679.46/286,122.96 - Step 6: Final answer
x = 219,146.68
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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.