Finding the Fourth Proportional to 395,416.89, 545,675.70 and 214,129.02
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Solution
The fourth proportional to 395,416.89, 545,675.70 and 214,129.02 is: 295,498.26
Step by Step Solution
- Step 1: Write the proportion equation
395,416.89 : 545,675.70 = 214,129.02 : x - Step 2: Convert to fraction form
395,416.89/545,675.70 = 214,129.02/x - Step 3: Cross multiply
395,416.89x = 545,675.70 × 214,129.02 - Step 4: Simplify right side
395,416.89x = 116,845,002,878.81 - Step 5: Solve for x
x = 116,845,002,878.81/395,416.89 - Step 6: Final answer
x = 295,498.26
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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.