Finding the Fourth Proportional to 380,542.13, 525,148.13 and 210,787.19
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Solution
The fourth proportional to 380,542.13, 525,148.13 and 210,787.19 is: 290,886.32
Step by Step Solution
- Step 1: Write the proportion equation
380,542.13 : 525,148.13 = 210,787.19 : x - Step 2: Convert to fraction form
380,542.13/525,148.13 = 210,787.19/x - Step 3: Cross multiply
380,542.13x = 525,148.13 × 210,787.19 - Step 4: Simplify right side
380,542.13x = 110,694,496,557.68 - Step 5: Solve for x
x = 110,694,496,557.68/380,542.13 - Step 6: Final answer
x = 290,886.32
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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.