Finding the Fourth Proportional to 395,421.40, 545,681.82 and 214,133.53
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Solution
The fourth proportional to 395,421.40, 545,681.82 and 214,133.53 is: 295,504.43
Step by Step Solution
- Step 1: Write the proportion equation
395,421.40 : 545,681.82 = 214,133.53 : x - Step 2: Convert to fraction form
395,421.40/545,681.82 = 214,133.53/x - Step 3: Cross multiply
395,421.40x = 545,681.82 × 214,133.53 - Step 4: Simplify right side
395,421.40x = 116,848,773,812.22 - Step 5: Solve for x
x = 116,848,773,812.22/395,421.40 - Step 6: Final answer
x = 295,504.43
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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.