Finding the Fourth Proportional to 259,885.80, 389,867.94 and 110,126.70
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Solution
The fourth proportional to 259,885.80, 389,867.94 and 110,126.70 is: 165,206.68
Step by Step Solution
- Step 1: Write the proportion equation
259,885.80 : 389,867.94 = 110,126.70 : x - Step 2: Convert to fraction form
259,885.80/389,867.94 = 110,126.70/x - Step 3: Cross multiply
259,885.80x = 389,867.94 × 110,126.70 - Step 4: Simplify right side
259,885.80x = 42,934,869,668.00 - Step 5: Solve for x
x = 42,934,869,668.00/259,885.80 - Step 6: Final answer
x = 165,206.68
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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.