Finding the Fourth Proportional to 382,163.32, 527,381.58 and 212,393.80
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Solution
The fourth proportional to 382,163.32, 527,381.58 and 212,393.80 is: 293,101.33
Step by Step Solution
- Step 1: Write the proportion equation
382,163.32 : 527,381.58 = 212,393.80 : x - Step 2: Convert to fraction form
382,163.32/527,381.58 = 212,393.80/x - Step 3: Cross multiply
382,163.32x = 527,381.58 × 212,393.80 - Step 4: Simplify right side
382,163.32x = 112,012,577,826.20 - Step 5: Solve for x
x = 112,012,577,826.20/382,163.32 - Step 6: Final answer
x = 293,101.33
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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.