Finding the Fourth Proportional to 621,173.97, 931,781.67 and 171,857.19
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Solution
The fourth proportional to 621,173.97, 931,781.67 and 171,857.19 is: 257,791.52
Step by Step Solution
- Step 1: Write the proportion equation
621,173.97 : 931,781.67 = 171,857.19 : x - Step 2: Convert to fraction form
621,173.97/931,781.67 = 171,857.19/x - Step 3: Cross multiply
621,173.97x = 931,781.67 × 171,857.19 - Step 4: Simplify right side
621,173.97x = 160,133,379,499.71 - Step 5: Solve for x
x = 160,133,379,499.71/621,173.97 - Step 6: Final answer
x = 257,791.52
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.