Finding the Fourth Proportional to 399,239.79, 598,361.34 and 199,617.28
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Solution
The fourth proportional to 399,239.79, 598,361.34 and 199,617.28 is: 299,176.75
Step by Step Solution
- Step 1: Write the proportion equation
399,239.79 : 598,361.34 = 199,617.28 : x - Step 2: Convert to fraction form
399,239.79/598,361.34 = 199,617.28/x - Step 3: Cross multiply
399,239.79x = 598,361.34 × 199,617.28 - Step 4: Simplify right side
399,239.79x = 119,443,262,400.62 - Step 5: Solve for x
x = 119,443,262,400.62/399,239.79 - Step 6: Final answer
x = 299,176.75
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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.