Finding the Fourth Proportional to 409,908.24, 565,676.56 and 228,631.68
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Solution
The fourth proportional to 409,908.24, 565,676.56 and 228,631.68 is: 315,513.50
Step by Step Solution
- Step 1: Write the proportion equation
409,908.24 : 565,676.56 = 228,631.68 : x - Step 2: Convert to fraction form
409,908.24/565,676.56 = 228,631.68/x - Step 3: Cross multiply
409,908.24x = 565,676.56 × 228,631.68 - Step 4: Simplify right side
409,908.24x = 129,331,582,249.42 - Step 5: Solve for x
x = 129,331,582,249.42/409,908.24 - Step 6: Final answer
x = 315,513.50
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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.