Finding the Fourth Proportional to 492,129.15, 738,102.60 and 137,069.70
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Solution
The fourth proportional to 492,129.15, 738,102.60 and 137,069.70 is: 205,579.17
Step by Step Solution
- Step 1: Write the proportion equation
492,129.15 : 738,102.60 = 137,069.70 : x - Step 2: Convert to fraction form
492,129.15/738,102.60 = 137,069.70/x - Step 3: Cross multiply
492,129.15x = 738,102.60 × 137,069.70 - Step 4: Simplify right side
492,129.15x = 101,171,501,951.22 - Step 5: Solve for x
x = 101,171,501,951.22/492,129.15 - Step 6: Final answer
x = 205,579.17
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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.