Finding the Fourth Proportional to 331,497.80, 497,246.70 and 205,526.60
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Solution
The fourth proportional to 331,497.80, 497,246.70 and 205,526.60 is: 308,289.90
Step by Step Solution
- Step 1: Write the proportion equation
331,497.80 : 497,246.70 = 205,526.60 : x - Step 2: Convert to fraction form
331,497.80/497,246.70 = 205,526.60/x - Step 3: Cross multiply
331,497.80x = 497,246.70 × 205,526.60 - Step 4: Simplify right side
331,497.80x = 102,197,423,612.22 - Step 5: Solve for x
x = 102,197,423,612.22/331,497.80 - Step 6: Final answer
x = 308,289.90
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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.