Finding the Fourth Proportional to 234,317.78, 351,403.99 and 84,538.60
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Solution
The fourth proportional to 234,317.78, 351,403.99 and 84,538.60 is: 126,781.68
Step by Step Solution
- Step 1: Write the proportion equation
234,317.78 : 351,403.99 = 84,538.60 : x - Step 2: Convert to fraction form
234,317.78/351,403.99 = 84,538.60/x - Step 3: Cross multiply
234,317.78x = 351,403.99 × 84,538.60 - Step 4: Simplify right side
234,317.78x = 29,707,201,349.01 - Step 5: Solve for x
x = 29,707,201,349.01/234,317.78 - Step 6: Final answer
x = 126,781.68
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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.