Finding the Fourth Proportional to 422,221.68, 582,666.12 and 231,247.08
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Solution
The fourth proportional to 422,221.68, 582,666.12 and 231,247.08 is: 319,121.08
Step by Step Solution
- Step 1: Write the proportion equation
422,221.68 : 582,666.12 = 231,247.08 : x - Step 2: Convert to fraction form
422,221.68/582,666.12 = 231,247.08/x - Step 3: Cross multiply
422,221.68x = 582,666.12 × 231,247.08 - Step 4: Simplify right side
422,221.68x = 134,739,838,864.93 - Step 5: Solve for x
x = 134,739,838,864.93/422,221.68 - Step 6: Final answer
x = 319,121.08
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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.