Finding the Fourth Proportional to 419,156.16, 578,435.57 and 228,170.98
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Solution
The fourth proportional to 419,156.16, 578,435.57 and 228,170.98 is: 314,875.99
Step by Step Solution
- Step 1: Write the proportion equation
419,156.16 : 578,435.57 = 228,170.98 : x - Step 2: Convert to fraction form
419,156.16/578,435.57 = 228,170.98/x - Step 3: Cross multiply
419,156.16x = 578,435.57 × 228,170.98 - Step 4: Simplify right side
419,156.16x = 131,982,211,311.59 - Step 5: Solve for x
x = 131,982,211,311.59/419,156.16 - Step 6: Final answer
x = 314,875.99
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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.