Finding the Fourth Proportional to 299,149.20, 448,723.80 and 272,905.20
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Solution
The fourth proportional to 299,149.20, 448,723.80 and 272,905.20 is: 409,357.80
Step by Step Solution
- Step 1: Write the proportion equation
299,149.20 : 448,723.80 = 272,905.20 : x - Step 2: Convert to fraction form
299,149.20/448,723.80 = 272,905.20/x - Step 3: Cross multiply
299,149.20x = 448,723.80 × 272,905.20 - Step 4: Simplify right side
299,149.20x = 122,459,058,383.76 - Step 5: Solve for x
x = 122,459,058,383.76/299,149.20 - Step 6: Final answer
x = 409,357.80
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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.