Finding the Fourth Proportional to 171,927.70, 257,891.55 and 154,431.70
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Solution
The fourth proportional to 171,927.70, 257,891.55 and 154,431.70 is: 231,647.55
Step by Step Solution
- Step 1: Write the proportion equation
171,927.70 : 257,891.55 = 154,431.70 : x - Step 2: Convert to fraction form
171,927.70/257,891.55 = 154,431.70/x - Step 3: Cross multiply
171,927.70x = 257,891.55 × 154,431.70 - Step 4: Simplify right side
171,927.70x = 39,826,630,482.14 - Step 5: Solve for x
x = 39,826,630,482.14/171,927.70 - Step 6: Final answer
x = 231,647.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.