Finding the Fourth Proportional to 409,838.18, 565,579.68 and 228,561.80
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Solution
The fourth proportional to 409,838.18, 565,579.68 and 228,561.80 is: 315,416.95
Step by Step Solution
- Step 1: Write the proportion equation
409,838.18 : 565,579.68 = 228,561.80 : x - Step 2: Convert to fraction form
409,838.18/565,579.68 = 228,561.80/x - Step 3: Cross multiply
409,838.18x = 565,579.68 × 228,561.80 - Step 4: Simplify right side
409,838.18x = 129,269,909,704.22 - Step 5: Solve for x
x = 129,269,909,704.22/409,838.18 - Step 6: Final answer
x = 315,416.95
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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.