Finding the Fourth Proportional to 405,714.18, 608,921.19 and 156,571.14
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Solution
The fourth proportional to 405,714.18, 608,921.19 and 156,571.14 is: 234,991.75
Step by Step Solution
- Step 1: Write the proportion equation
405,714.18 : 608,921.19 = 156,571.14 : x - Step 2: Convert to fraction form
405,714.18/608,921.19 = 156,571.14/x - Step 3: Cross multiply
405,714.18x = 608,921.19 × 156,571.14 - Step 4: Simplify right side
405,714.18x = 95,339,484,888.46 - Step 5: Solve for x
x = 95,339,484,888.46/405,714.18 - Step 6: Final answer
x = 234,991.75
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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.