Finding the Fourth Proportional to 485,349.88, 669,783.36 and 270,485.08
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Solution
The fourth proportional to 485,349.88, 669,783.36 and 270,485.08 is: 373,269.70
Step by Step Solution
- Step 1: Write the proportion equation
485,349.88 : 669,783.36 = 270,485.08 : x - Step 2: Convert to fraction form
485,349.88/669,783.36 = 270,485.08/x - Step 3: Cross multiply
485,349.88x = 669,783.36 × 270,485.08 - Step 4: Simplify right side
485,349.88x = 181,166,405,712.27 - Step 5: Solve for x
x = 181,166,405,712.27/485,349.88 - Step 6: Final answer
x = 373,269.70
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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.