Finding the Fourth Proportional to 286,361.31, 395,178.61 and 159,048.75
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Solution
The fourth proportional to 286,361.31, 395,178.61 and 159,048.75 is: 219,487.28
Step by Step Solution
- Step 1: Write the proportion equation
286,361.31 : 395,178.61 = 159,048.75 : x - Step 2: Convert to fraction form
286,361.31/395,178.61 = 159,048.75/x - Step 3: Cross multiply
286,361.31x = 395,178.61 × 159,048.75 - Step 4: Simplify right side
286,361.31x = 62,852,663,947.24 - Step 5: Solve for x
x = 62,852,663,947.24/286,361.31 - Step 6: Final answer
x = 219,487.28
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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.