Finding the Fourth Proportional to 419,121.18, 578,402.10 and 237,840.75
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Solution
The fourth proportional to 419,121.18, 578,402.10 and 237,840.75 is: 328,228.67
Step by Step Solution
- Step 1: Write the proportion equation
419,121.18 : 578,402.10 = 237,840.75 : x - Step 2: Convert to fraction form
419,121.18/578,402.10 = 237,840.75/x - Step 3: Cross multiply
419,121.18x = 578,402.10 × 237,840.75 - Step 4: Simplify right side
419,121.18x = 137,567,589,265.58 - Step 5: Solve for x
x = 137,567,589,265.58/419,121.18 - Step 6: Final answer
x = 328,228.67
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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.