Finding the Fourth Proportional to 275,587.92, 380,349.36 and 153,107.76
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Solution
The fourth proportional to 275,587.92, 380,349.36 and 153,107.76 is: 211,309.84
Step by Step Solution
- Step 1: Write the proportion equation
275,587.92 : 380,349.36 = 153,107.76 : x - Step 2: Convert to fraction form
275,587.92/380,349.36 = 153,107.76/x - Step 3: Cross multiply
275,587.92x = 380,349.36 × 153,107.76 - Step 4: Simplify right side
275,587.92x = 58,234,438,527.03 - Step 5: Solve for x
x = 58,234,438,527.03/275,587.92 - Step 6: Final answer
x = 211,309.84
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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.