Finding the Fourth Proportional to 299,454.36, 449,203.47 and 86,213.62
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Solution
The fourth proportional to 299,454.36, 449,203.47 and 86,213.62 is: 129,326.74
Step by Step Solution
- Step 1: Write the proportion equation
299,454.36 : 449,203.47 = 86,213.62 : x - Step 2: Convert to fraction form
299,454.36/449,203.47 = 86,213.62/x - Step 3: Cross multiply
299,454.36x = 449,203.47 × 86,213.62 - Step 4: Simplify right side
299,454.36x = 38,727,457,265.26 - Step 5: Solve for x
x = 38,727,457,265.26/299,454.36 - Step 6: Final answer
x = 129,326.74
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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.