Finding the Fourth Proportional to 289,381.16, 399,348.96 and 160,323.44
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Solution
The fourth proportional to 289,381.16, 399,348.96 and 160,323.44 is: 221,247.99
Step by Step Solution
- Step 1: Write the proportion equation
289,381.16 : 399,348.96 = 160,323.44 : x - Step 2: Convert to fraction form
289,381.16/399,348.96 = 160,323.44/x - Step 3: Cross multiply
289,381.16x = 399,348.96 × 160,323.44 - Step 4: Simplify right side
289,381.16x = 64,024,999,027.62 - Step 5: Solve for x
x = 64,024,999,027.62/289,381.16 - Step 6: Final answer
x = 221,247.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.