Finding the Fourth Proportional to 259,562.08, 389,343.84 and 72,575.20
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Solution
The fourth proportional to 259,562.08, 389,343.84 and 72,575.20 is: 108,863.00
Step by Step Solution
- Step 1: Write the proportion equation
259,562.08 : 389,343.84 = 72,575.20 : x - Step 2: Convert to fraction form
259,562.08/389,343.84 = 72,575.20/x - Step 3: Cross multiply
259,562.08x = 389,343.84 × 72,575.20 - Step 4: Simplify right side
259,562.08x = 28,256,707,056.77 - Step 5: Solve for x
x = 28,256,707,056.77/259,562.08 - Step 6: Final answer
x = 108,863.00
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.