Finding the Fourth Proportional to 419,199.02, 578,476.50 and 228,213.08
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Solution
The fourth proportional to 419,199.02, 578,476.50 and 228,213.08 is: 314,924.17
Step by Step Solution
- Step 1: Write the proportion equation
419,199.02 : 578,476.50 = 228,213.08 : x - Step 2: Convert to fraction form
419,199.02/578,476.50 = 228,213.08/x - Step 3: Cross multiply
419,199.02x = 578,476.50 × 228,213.08 - Step 4: Simplify right side
419,199.02x = 132,015,903,772.62 - Step 5: Solve for x
x = 132,015,903,772.62/419,199.02 - Step 6: Final answer
x = 314,924.17
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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.