Finding the Fourth Proportional to 373,721.81, 515,752.87 and 210,434.45
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Solution
The fourth proportional to 373,721.81, 515,752.87 and 210,434.45 is: 290,408.99
Step by Step Solution
- Step 1: Write the proportion equation
373,721.81 : 515,752.87 = 210,434.45 : x - Step 2: Convert to fraction form
373,721.81/515,752.87 = 210,434.45/x - Step 3: Cross multiply
373,721.81x = 515,752.87 × 210,434.45 - Step 4: Simplify right side
373,721.81x = 108,532,171,534.37 - Step 5: Solve for x
x = 108,532,171,534.37/373,721.81 - Step 6: Final answer
x = 290,408.99
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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.