Finding the Fourth Proportional to 261,305.28, 360,590.40 and 148,135.68
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Solution
The fourth proportional to 261,305.28, 360,590.40 and 148,135.68 is: 204,421.07
Step by Step Solution
- Step 1: Write the proportion equation
261,305.28 : 360,590.40 = 148,135.68 : x - Step 2: Convert to fraction form
261,305.28/360,590.40 = 148,135.68/x - Step 3: Cross multiply
261,305.28x = 360,590.40 × 148,135.68 - Step 4: Simplify right side
261,305.28x = 53,416,304,105.47 - Step 5: Solve for x
x = 53,416,304,105.47/261,305.28 - Step 6: Final answer
x = 204,421.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.