Finding the Fourth Proportional to 259,767.70, 389,704.20 and 147,501.70
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Solution
The fourth proportional to 259,767.70, 389,704.20 and 147,501.70 is: 221,282.45
Step by Step Solution
- Step 1: Write the proportion equation
259,767.70 : 389,704.20 = 147,501.70 : x - Step 2: Convert to fraction form
259,767.70/389,704.20 = 147,501.70/x - Step 3: Cross multiply
259,767.70x = 389,704.20 × 147,501.70 - Step 4: Simplify right side
259,767.70x = 57,482,031,997.14 - Step 5: Solve for x
x = 57,482,031,997.14/259,767.70 - Step 6: Final answer
x = 221,282.45
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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.