Finding the Fourth Proportional to 422,412.88, 633,553.08 and 138,101.44
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Solution
The fourth proportional to 422,412.88, 633,553.08 and 138,101.44 is: 207,130.50
Step by Step Solution
- Step 1: Write the proportion equation
422,412.88 : 633,553.08 = 138,101.44 : x - Step 2: Convert to fraction form
422,412.88/633,553.08 = 138,101.44/x - Step 3: Cross multiply
422,412.88x = 633,553.08 × 138,101.44 - Step 4: Simplify right side
422,412.88x = 87,494,592,664.44 - Step 5: Solve for x
x = 87,494,592,664.44/422,412.88 - Step 6: Final answer
x = 207,130.50
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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.