Finding the Fourth Proportional to 399,690.18, 551,572.29 and 220,842.18
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Solution
The fourth proportional to 399,690.18, 551,572.29 and 220,842.18 is: 304,762.12
Step by Step Solution
- Step 1: Write the proportion equation
399,690.18 : 551,572.29 = 220,842.18 : x - Step 2: Convert to fraction form
399,690.18/551,572.29 = 220,842.18/x - Step 3: Cross multiply
399,690.18x = 551,572.29 × 220,842.18 - Step 4: Simplify right side
399,690.18x = 121,810,426,951.19 - Step 5: Solve for x
x = 121,810,426,951.19/399,690.18 - Step 6: Final answer
x = 304,762.12
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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.