Finding the Fourth Proportional to 399,605.31, 599,408.33 and 119,115.63
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Solution
The fourth proportional to 399,605.31, 599,408.33 and 119,115.63 is: 178,673.55
Step by Step Solution
- Step 1: Write the proportion equation
399,605.31 : 599,408.33 = 119,115.63 : x - Step 2: Convert to fraction form
399,605.31/599,408.33 = 119,115.63/x - Step 3: Cross multiply
399,605.31x = 599,408.33 × 119,115.63 - Step 4: Simplify right side
399,605.31x = 71,398,900,259.62 - Step 5: Solve for x
x = 71,398,900,259.62/399,605.31 - Step 6: Final answer
x = 178,673.55
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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.