Finding the Fourth Proportional to 551,214.69, 826,431.11 and 213,971.09
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Solution
The fourth proportional to 551,214.69, 826,431.11 and 213,971.09 is: 320,804.89
Step by Step Solution
- Step 1: Write the proportion equation
551,214.69 : 826,431.11 = 213,971.09 : x - Step 2: Convert to fraction form
551,214.69/826,431.11 = 213,971.09/x - Step 3: Cross multiply
551,214.69x = 826,431.11 × 213,971.09 - Step 4: Simplify right side
551,214.69x = 176,832,365,416.61 - Step 5: Solve for x
x = 176,832,365,416.61/551,214.69 - Step 6: Final answer
x = 320,804.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.