Finding the Fourth Proportional to 261,621.20, 391,848.60 and 202,134.80
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Solution
The fourth proportional to 261,621.20, 391,848.60 and 202,134.80 is: 302,751.61
Step by Step Solution
- Step 1: Write the proportion equation
261,621.20 : 391,848.60 = 202,134.80 : x - Step 2: Convert to fraction form
261,621.20/391,848.60 = 202,134.80/x - Step 3: Cross multiply
261,621.20x = 391,848.60 × 202,134.80 - Step 4: Simplify right side
261,621.20x = 79,206,238,391.28 - Step 5: Solve for x
x = 79,206,238,391.28/261,621.20 - Step 6: Final answer
x = 302,751.61
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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.