Finding the Fourth Proportional to 259,824.60, 389,588.04 and 79,863.17
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Solution
The fourth proportional to 259,824.60, 389,588.04 and 79,863.17 is: 119,748.99
Step by Step Solution
- Step 1: Write the proportion equation
259,824.60 : 389,588.04 = 79,863.17 : x - Step 2: Convert to fraction form
259,824.60/389,588.04 = 79,863.17/x - Step 3: Cross multiply
259,824.60x = 389,588.04 × 79,863.17 - Step 4: Simplify right side
259,824.60x = 31,113,733,920.55 - Step 5: Solve for x
x = 31,113,733,920.55/259,824.60 - Step 6: Final answer
x = 119,748.99
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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.