Finding the Fourth Proportional to 399,619.17, 599,435.37 and 133,381.08
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Solution
The fourth proportional to 399,619.17, 599,435.37 and 133,381.08 is: 200,073.83
Step by Step Solution
- Step 1: Write the proportion equation
399,619.17 : 599,435.37 = 133,381.08 : x - Step 2: Convert to fraction form
399,619.17/599,435.37 = 133,381.08/x - Step 3: Cross multiply
399,619.17x = 599,435.37 × 133,381.08 - Step 4: Simplify right side
399,619.17x = 79,953,337,040.80 - Step 5: Solve for x
x = 79,953,337,040.80/399,619.17 - Step 6: Final answer
x = 200,073.83
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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.