Finding the Fourth Proportional to 409,976.20, 565,767.93 and 228,683.44
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Solution
The fourth proportional to 409,976.20, 565,767.93 and 228,683.44 is: 315,583.58
Step by Step Solution
- Step 1: Write the proportion equation
409,976.20 : 565,767.93 = 228,683.44 : x - Step 2: Convert to fraction form
409,976.20/565,767.93 = 228,683.44/x - Step 3: Cross multiply
409,976.20x = 565,767.93 × 228,683.44 - Step 4: Simplify right side
409,976.20x = 129,381,756,474.08 - Step 5: Solve for x
x = 129,381,756,474.08/409,976.20 - Step 6: Final answer
x = 315,583.58
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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.