Finding the Fourth Proportional to 291,929.14, 402,861.99 and 157,793.14
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Solution
The fourth proportional to 291,929.14, 402,861.99 and 157,793.14 is: 217,754.41
Step by Step Solution
- Step 1: Write the proportion equation
291,929.14 : 402,861.99 = 157,793.14 : x - Step 2: Convert to fraction form
291,929.14/402,861.99 = 157,793.14/x - Step 3: Cross multiply
291,929.14x = 402,861.99 × 157,793.14 - Step 4: Simplify right side
291,929.14x = 63,568,858,388.75 - Step 5: Solve for x
x = 63,568,858,388.75/291,929.14 - Step 6: Final answer
x = 217,754.41
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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.