Finding the Fourth Proportional to 417,638.64, 576,341.62 and 226,651.98
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Solution
The fourth proportional to 417,638.64, 576,341.62 and 226,651.98 is: 312,779.89
Step by Step Solution
- Step 1: Write the proportion equation
417,638.64 : 576,341.62 = 226,651.98 : x - Step 2: Convert to fraction form
417,638.64/576,341.62 = 226,651.98/x - Step 3: Cross multiply
417,638.64x = 576,341.62 × 226,651.98 - Step 4: Simplify right side
417,638.64x = 130,628,969,329.41 - Step 5: Solve for x
x = 130,628,969,329.41/417,638.64 - Step 6: Final answer
x = 312,779.89
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.