Finding the Fourth Proportional to 250,137.18, 345,193.11 and 136,970.46
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Solution
The fourth proportional to 250,137.18, 345,193.11 and 136,970.46 is: 189,021.32
Step by Step Solution
- Step 1: Write the proportion equation
250,137.18 : 345,193.11 = 136,970.46 : x - Step 2: Convert to fraction form
250,137.18/345,193.11 = 136,970.46/x - Step 3: Cross multiply
250,137.18x = 345,193.11 × 136,970.46 - Step 4: Simplify right side
250,137.18x = 47,281,259,065.53 - Step 5: Solve for x
x = 47,281,259,065.53/250,137.18 - Step 6: Final answer
x = 189,021.32
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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.