Finding the Fourth Proportional to 275,855.08, 380,680.26 and 156,623.08
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Solution
The fourth proportional to 275,855.08, 380,680.26 and 156,623.08 is: 216,139.99
Step by Step Solution
- Step 1: Write the proportion equation
275,855.08 : 380,680.26 = 156,623.08 : x - Step 2: Convert to fraction form
275,855.08/380,680.26 = 156,623.08/x - Step 3: Cross multiply
275,855.08x = 380,680.26 × 156,623.08 - Step 4: Simplify right side
275,855.08x = 59,623,314,816.40 - Step 5: Solve for x
x = 59,623,314,816.40/275,855.08 - Step 6: Final answer
x = 216,139.99
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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.