Finding the Fourth Proportional to 380,900.80, 571,423.42 and 153,213.84
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Solution
The fourth proportional to 380,900.80, 571,423.42 and 153,213.84 is: 229,849.81
Step by Step Solution
- Step 1: Write the proportion equation
380,900.80 : 571,423.42 = 153,213.84 : x - Step 2: Convert to fraction form
380,900.80/571,423.42 = 153,213.84/x - Step 3: Cross multiply
380,900.80x = 571,423.42 × 153,213.84 - Step 4: Simplify right side
380,900.80x = 87,549,976,444.13 - Step 5: Solve for x
x = 87,549,976,444.13/380,900.80 - Step 6: Final answer
x = 229,849.81
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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.