Finding the Fourth Proportional to 386,000.28, 532,680.03 and 216,235.62
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Solution
The fourth proportional to 386,000.28, 532,680.03 and 216,235.62 is: 298,404.96
Step by Step Solution
- Step 1: Write the proportion equation
386,000.28 : 532,680.03 = 216,235.62 : x - Step 2: Convert to fraction form
386,000.28/532,680.03 = 216,235.62/x - Step 3: Cross multiply
386,000.28x = 532,680.03 × 216,235.62 - Step 4: Simplify right side
386,000.28x = 115,184,396,548.67 - Step 5: Solve for x
x = 115,184,396,548.67/386,000.28 - Step 6: Final answer
x = 298,404.96
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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.