Finding the Fourth Proportional to 320,538.86, 442,330.11 and 177,289.75
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Solution
The fourth proportional to 320,538.86, 442,330.11 and 177,289.75 is: 244,652.38
Step by Step Solution
- Step 1: Write the proportion equation
320,538.86 : 442,330.11 = 177,289.75 : x - Step 2: Convert to fraction form
320,538.86/442,330.11 = 177,289.75/x - Step 3: Cross multiply
320,538.86x = 442,330.11 × 177,289.75 - Step 4: Simplify right side
320,538.86x = 78,420,593,513.55 - Step 5: Solve for x
x = 78,420,593,513.55/320,538.86 - Step 6: Final answer
x = 244,652.38
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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.