Finding the Fourth Proportional to 193,400.87, 266,889.21 and 107,354.84
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Solution
The fourth proportional to 193,400.87, 266,889.21 and 107,354.84 is: 148,147.46
Step by Step Solution
- Step 1: Write the proportion equation
193,400.87 : 266,889.21 = 107,354.84 : x - Step 2: Convert to fraction form
193,400.87/266,889.21 = 107,354.84/x - Step 3: Cross multiply
193,400.87x = 266,889.21 × 107,354.84 - Step 4: Simplify right side
193,400.87x = 28,651,848,437.28 - Step 5: Solve for x
x = 28,651,848,437.28/193,400.87 - Step 6: Final answer
x = 148,147.46
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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.