Finding the Fourth Proportional to 419,192.88, 578,486.24 and 228,207.70
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Solution
The fourth proportional to 419,192.88, 578,486.24 and 228,207.70 is: 314,926.66
Step by Step Solution
- Step 1: Write the proportion equation
419,192.88 : 578,486.24 = 228,207.70 : x - Step 2: Convert to fraction form
419,192.88/578,486.24 = 228,207.70/x - Step 3: Cross multiply
419,192.88x = 578,486.24 × 228,207.70 - Step 4: Simplify right side
419,192.88x = 132,015,014,312.05 - Step 5: Solve for x
x = 132,015,014,312.05/419,192.88 - Step 6: Final answer
x = 314,926.66
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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.