Finding the Fourth Proportional to 355,202.70, 530,212.91 and 310,361.88
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Solution
The fourth proportional to 355,202.70, 530,212.91 and 310,361.88 is: 463,278.78
Step by Step Solution
- Step 1: Write the proportion equation
355,202.70 : 530,212.91 = 310,361.88 : x - Step 2: Convert to fraction form
355,202.70/530,212.91 = 310,361.88/x - Step 3: Cross multiply
355,202.70x = 530,212.91 × 310,361.88 - Step 4: Simplify right side
355,202.70x = 164,557,873,996.06 - Step 5: Solve for x
x = 164,557,873,996.06/355,202.70 - Step 6: Final answer
x = 463,278.78
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.