Finding the Fourth Proportional to 325,432.20, 488,585.70 and 207,625.80
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Solution
The fourth proportional to 325,432.20, 488,585.70 and 207,625.80 is: 311,717.76
Step by Step Solution
- Step 1: Write the proportion equation
325,432.20 : 488,585.70 = 207,625.80 : x - Step 2: Convert to fraction form
325,432.20/488,585.70 = 207,625.80/x - Step 3: Cross multiply
325,432.20x = 488,585.70 × 207,625.80 - Step 4: Simplify right side
325,432.20x = 101,442,996,831.06 - Step 5: Solve for x
x = 101,442,996,831.06/325,432.20 - Step 6: Final answer
x = 311,717.76
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.