Finding the Fourth Proportional to 212,149.14, 292,763.61 and 157,943.67
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Solution
The fourth proportional to 212,149.14, 292,763.61 and 157,943.67 is: 217,960.62
Step by Step Solution
- Step 1: Write the proportion equation
212,149.14 : 292,763.61 = 157,943.67 : x - Step 2: Convert to fraction form
212,149.14/292,763.61 = 157,943.67/x - Step 3: Cross multiply
212,149.14x = 292,763.61 × 157,943.67 - Step 4: Simplify right side
212,149.14x = 46,240,159,005.85 - Step 5: Solve for x
x = 46,240,159,005.85/212,149.14 - Step 6: Final answer
x = 217,960.62
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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.