Finding the Fourth Proportional to 395,387.81, 545,613.59 and 234,257.75
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Solution
The fourth proportional to 395,387.81, 545,613.59 and 234,257.75 is: 323,262.90
Step by Step Solution
- Step 1: Write the proportion equation
395,387.81 : 545,613.59 = 234,257.75 : x - Step 2: Convert to fraction form
395,387.81/545,613.59 = 234,257.75/x - Step 3: Cross multiply
395,387.81x = 545,613.59 × 234,257.75 - Step 4: Simplify right side
395,387.81x = 127,814,209,820.40 - Step 5: Solve for x
x = 127,814,209,820.40/395,387.81 - Step 6: Final answer
x = 323,262.90
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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.