Finding the Fourth Proportional to 212,838.21, 293,718.71 and 117,348.30
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Solution
The fourth proportional to 212,838.21, 293,718.71 and 117,348.30 is: 161,941.75
Step by Step Solution
- Step 1: Write the proportion equation
212,838.21 : 293,718.71 = 117,348.30 : x - Step 2: Convert to fraction form
212,838.21/293,718.71 = 117,348.30/x - Step 3: Cross multiply
212,838.21x = 293,718.71 × 117,348.30 - Step 4: Simplify right side
212,838.21x = 34,467,391,590.06 - Step 5: Solve for x
x = 34,467,391,590.06/212,838.21 - Step 6: Final answer
x = 161,941.75
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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.