Finding the Fourth Proportional to 382,444.40, 527,722.08 and 212,645.84
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Solution
The fourth proportional to 382,444.40, 527,722.08 and 212,645.84 is: 293,422.80
Step by Step Solution
- Step 1: Write the proportion equation
382,444.40 : 527,722.08 = 212,645.84 : x - Step 2: Convert to fraction form
382,444.40/527,722.08 = 212,645.84/x - Step 3: Cross multiply
382,444.40x = 527,722.08 × 212,645.84 - Step 4: Simplify right side
382,444.40x = 112,217,904,988.15 - Step 5: Solve for x
x = 112,217,904,988.15/382,444.40 - Step 6: Final answer
x = 293,422.80
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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.