Finding the Fourth Proportional to 280,375.68, 386,925.76 and 153,063.04
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Solution
The fourth proportional to 280,375.68, 386,925.76 and 153,063.04 is: 211,230.99
Step by Step Solution
- Step 1: Write the proportion equation
280,375.68 : 386,925.76 = 153,063.04 : x - Step 2: Convert to fraction form
280,375.68/386,925.76 = 153,063.04/x - Step 3: Cross multiply
280,375.68x = 386,925.76 × 153,063.04 - Step 4: Simplify right side
280,375.68x = 59,224,033,079.91 - Step 5: Solve for x
x = 59,224,033,079.91/280,375.68 - Step 6: Final answer
x = 211,230.99
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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.