Finding the Fourth Proportional to 399,846.68, 551,778.18 and 218,559.08
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Solution
The fourth proportional to 399,846.68, 551,778.18 and 218,559.08 is: 301,605.93
Step by Step Solution
- Step 1: Write the proportion equation
399,846.68 : 551,778.18 = 218,559.08 : x - Step 2: Convert to fraction form
399,846.68/551,778.18 = 218,559.08/x - Step 3: Cross multiply
399,846.68x = 551,778.18 × 218,559.08 - Step 4: Simplify right side
399,846.68x = 120,596,131,384.87 - Step 5: Solve for x
x = 120,596,131,384.87/399,846.68 - Step 6: Final answer
x = 301,605.93
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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.