Finding the Fourth Proportional to 430,858.09, 646,380.15 and 131,330.62
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Solution
The fourth proportional to 430,858.09, 646,380.15 and 131,330.62 is: 197,024.28
Step by Step Solution
- Step 1: Write the proportion equation
430,858.09 : 646,380.15 = 131,330.62 : x - Step 2: Convert to fraction form
430,858.09/646,380.15 = 131,330.62/x - Step 3: Cross multiply
430,858.09x = 646,380.15 × 131,330.62 - Step 4: Simplify right side
430,858.09x = 84,889,505,855.19 - Step 5: Solve for x
x = 84,889,505,855.19/430,858.09 - Step 6: Final answer
x = 197,024.28
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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.