Finding the Fourth Proportional to 399,765.03, 551,677.19 and 218,476.91
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Solution
The fourth proportional to 399,765.03, 551,677.19 and 218,476.91 is: 301,498.92
Step by Step Solution
- Step 1: Write the proportion equation
399,765.03 : 551,677.19 = 218,476.91 : x - Step 2: Convert to fraction form
399,765.03/551,677.19 = 218,476.91/x - Step 3: Cross multiply
399,765.03x = 551,677.19 × 218,476.91 - Step 4: Simplify right side
399,765.03x = 120,528,726,825.99 - Step 5: Solve for x
x = 120,528,726,825.99/399,765.03 - Step 6: Final answer
x = 301,498.92
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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.