Finding the Fourth Proportional to 405,458.19, 608,273.15 and 121,170.87
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Solution
The fourth proportional to 405,458.19, 608,273.15 and 121,170.87 is: 181,781.96
Step by Step Solution
- Step 1: Write the proportion equation
405,458.19 : 608,273.15 = 121,170.87 : x - Step 2: Convert to fraction form
405,458.19/608,273.15 = 121,170.87/x - Step 3: Cross multiply
405,458.19x = 608,273.15 × 121,170.87 - Step 4: Simplify right side
405,458.19x = 73,704,986,177.29 - Step 5: Solve for x
x = 73,704,986,177.29/405,458.19 - Step 6: Final answer
x = 181,781.96
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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.