Finding the Fourth Proportional to 409,932.48, 615,085.55 and 210,392.99
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Solution
The fourth proportional to 409,932.48, 615,085.55 and 210,392.99 is: 315,685.37
Step by Step Solution
- Step 1: Write the proportion equation
409,932.48 : 615,085.55 = 210,392.99 : x - Step 2: Convert to fraction form
409,932.48/615,085.55 = 210,392.99/x - Step 3: Cross multiply
409,932.48x = 615,085.55 × 210,392.99 - Step 4: Simplify right side
409,932.48x = 129,409,686,505.96 - Step 5: Solve for x
x = 129,409,686,505.96/409,932.48 - Step 6: Final answer
x = 315,685.37
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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.