Finding the Fourth Proportional to 405,918.18, 608,805.99 and 125,437.86
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Solution
The fourth proportional to 405,918.18, 608,805.99 and 125,437.86 is: 188,134.76
Step by Step Solution
- Step 1: Write the proportion equation
405,918.18 : 608,805.99 = 125,437.86 : x - Step 2: Convert to fraction form
405,918.18/608,805.99 = 125,437.86/x - Step 3: Cross multiply
405,918.18x = 608,805.99 × 125,437.86 - Step 4: Simplify right side
405,918.18x = 76,367,320,540.78 - Step 5: Solve for x
x = 76,367,320,540.78/405,918.18 - Step 6: Final answer
x = 188,134.76
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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.