Finding the Fourth Proportional to 352,984.36, 529,693.84 and 139,715.96
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Solution
The fourth proportional to 352,984.36, 529,693.84 and 139,715.96 is: 209,659.95
Step by Step Solution
- Step 1: Write the proportion equation
352,984.36 : 529,693.84 = 139,715.96 : x - Step 2: Convert to fraction form
352,984.36/529,693.84 = 139,715.96/x - Step 3: Cross multiply
352,984.36x = 529,693.84 × 139,715.96 - Step 4: Simplify right side
352,984.36x = 74,006,683,361.69 - Step 5: Solve for x
x = 74,006,683,361.69/352,984.36 - Step 6: Final answer
x = 209,659.95
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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.