Finding the Fourth Proportional to 399,630.09, 551,526.98 and 218,368.88
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Solution
The fourth proportional to 399,630.09, 551,526.98 and 218,368.88 is: 301,369.51
Step by Step Solution
- Step 1: Write the proportion equation
399,630.09 : 551,526.98 = 218,368.88 : x - Step 2: Convert to fraction form
399,630.09/551,526.98 = 218,368.88/x - Step 3: Cross multiply
399,630.09x = 551,526.98 × 218,368.88 - Step 4: Simplify right side
399,630.09x = 120,436,325,062.90 - Step 5: Solve for x
x = 120,436,325,062.90/399,630.09 - Step 6: Final answer
x = 301,369.51
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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.