Finding the Fourth Proportional to 357,406.12, 493,231.94 and 206,503.08
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Solution
The fourth proportional to 357,406.12, 493,231.94 and 206,503.08 is: 284,980.89
Step by Step Solution
- Step 1: Write the proportion equation
357,406.12 : 493,231.94 = 206,503.08 : x - Step 2: Convert to fraction form
357,406.12/493,231.94 = 206,503.08/x - Step 3: Cross multiply
357,406.12x = 493,231.94 × 206,503.08 - Step 4: Simplify right side
357,406.12x = 101,853,914,764.38 - Step 5: Solve for x
x = 101,853,914,764.38/357,406.12 - Step 6: Final answer
x = 284,980.89
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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.