Finding the Fourth Proportional to 405,882.35, 608,830.41 and 121,506.74
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Solution
The fourth proportional to 405,882.35, 608,830.41 and 121,506.74 is: 182,262.17
Step by Step Solution
- Step 1: Write the proportion equation
405,882.35 : 608,830.41 = 121,506.74 : x - Step 2: Convert to fraction form
405,882.35/608,830.41 = 121,506.74/x - Step 3: Cross multiply
405,882.35x = 608,830.41 × 121,506.74 - Step 4: Simplify right side
405,882.35x = 73,976,998,331.96 - Step 5: Solve for x
x = 73,976,998,331.96/405,882.35 - Step 6: Final answer
x = 182,262.17
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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.