Finding the Fourth Proportional to 312,016.05, 430,582.73 and 168,776.19
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Solution
The fourth proportional to 312,016.05, 430,582.73 and 168,776.19 is: 232,911.45
Step by Step Solution
- Step 1: Write the proportion equation
312,016.05 : 430,582.73 = 168,776.19 : x - Step 2: Convert to fraction form
312,016.05/430,582.73 = 168,776.19/x - Step 3: Cross multiply
312,016.05x = 430,582.73 × 168,776.19 - Step 4: Simplify right side
312,016.05x = 72,672,111,805.32 - Step 5: Solve for x
x = 72,672,111,805.32/312,016.05 - Step 6: Final answer
x = 232,911.45
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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.