Finding the Fourth Proportional to 243,868.24, 336,551.26 and 136,431.88
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Solution
The fourth proportional to 243,868.24, 336,551.26 and 136,431.88 is: 188,283.32
Step by Step Solution
- Step 1: Write the proportion equation
243,868.24 : 336,551.26 = 136,431.88 : x - Step 2: Convert to fraction form
243,868.24/336,551.26 = 136,431.88/x - Step 3: Cross multiply
243,868.24x = 336,551.26 × 136,431.88 - Step 4: Simplify right side
243,868.24x = 45,916,321,118.17 - Step 5: Solve for x
x = 45,916,321,118.17/243,868.24 - Step 6: Final answer
x = 188,283.32
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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.