Finding the Fourth Proportional to 259,407.14, 389,122.63 and 79,479.68
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Solution
The fourth proportional to 259,407.14, 389,122.63 and 79,479.68 is: 119,223.17
Step by Step Solution
- Step 1: Write the proportion equation
259,407.14 : 389,122.63 = 79,479.68 : x - Step 2: Convert to fraction form
259,407.14/389,122.63 = 79,479.68/x - Step 3: Cross multiply
259,407.14x = 389,122.63 × 79,479.68 - Step 4: Simplify right side
259,407.14x = 30,927,340,167.55 - Step 5: Solve for x
x = 30,927,340,167.55/259,407.14 - Step 6: Final answer
x = 119,223.17
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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.