Finding the Fourth Proportional to 212,230.12, 292,711.59 and 131,612.08
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Solution
The fourth proportional to 212,230.12, 292,711.59 and 131,612.08 is: 181,521.74
Step by Step Solution
- Step 1: Write the proportion equation
212,230.12 : 292,711.59 = 131,612.08 : x - Step 2: Convert to fraction form
212,230.12/292,711.59 = 131,612.08/x - Step 3: Cross multiply
212,230.12x = 292,711.59 × 131,612.08 - Step 4: Simplify right side
212,230.12x = 38,524,381,200.01 - Step 5: Solve for x
x = 38,524,381,200.01/212,230.12 - Step 6: Final answer
x = 181,521.74
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1.5x scale
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.