Finding the Fourth Proportional to 398,550.84, 550,153.68 and 291,967.44
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Solution
The fourth proportional to 398,550.84, 550,153.68 and 291,967.44 is: 403,027.53
Step by Step Solution
- Step 1: Write the proportion equation
398,550.84 : 550,153.68 = 291,967.44 : x - Step 2: Convert to fraction form
398,550.84/550,153.68 = 291,967.44/x - Step 3: Cross multiply
398,550.84x = 550,153.68 × 291,967.44 - Step 4: Simplify right side
398,550.84x = 160,626,961,556.18 - Step 5: Solve for x
x = 160,626,961,556.18/398,550.84 - Step 6: Final answer
x = 403,027.53
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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.