Finding the Fourth Proportional to 409,734.24, 565,467.12 and 228,421.68
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Solution
The fourth proportional to 409,734.24, 565,467.12 and 228,421.68 is: 315,240.80
Step by Step Solution
- Step 1: Write the proportion equation
409,734.24 : 565,467.12 = 228,421.68 : x - Step 2: Convert to fraction form
409,734.24/565,467.12 = 228,421.68/x - Step 3: Cross multiply
409,734.24x = 565,467.12 × 228,421.68 - Step 4: Simplify right side
409,734.24x = 129,164,949,535.16 - Step 5: Solve for x
x = 129,164,949,535.16/409,734.24 - Step 6: Final answer
x = 315,240.80
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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.