Finding the Fourth Proportional to 216,881.22, 299,292.97 and 120,075.79
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Solution
The fourth proportional to 216,881.22, 299,292.97 and 120,075.79 is: 165,702.87
Step by Step Solution
- Step 1: Write the proportion equation
216,881.22 : 299,292.97 = 120,075.79 : x - Step 2: Convert to fraction form
216,881.22/299,292.97 = 120,075.79/x - Step 3: Cross multiply
216,881.22x = 299,292.97 × 120,075.79 - Step 4: Simplify right side
216,881.22x = 35,937,839,814.20 - Step 5: Solve for x
x = 35,937,839,814.20/216,881.22 - Step 6: Final answer
x = 165,702.87
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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.