Finding the Fourth Proportional to 371,886.19, 513,204.76 and 202,120.31
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Solution
The fourth proportional to 371,886.19, 513,204.76 and 202,120.31 is: 278,927.02
Step by Step Solution
- Step 1: Write the proportion equation
371,886.19 : 513,204.76 = 202,120.31 : x - Step 2: Convert to fraction form
371,886.19/513,204.76 = 202,120.31/x - Step 3: Cross multiply
371,886.19x = 513,204.76 × 202,120.31 - Step 4: Simplify right side
371,886.19x = 103,729,106,720.34 - Step 5: Solve for x
x = 103,729,106,720.34/371,886.19 - Step 6: Final answer
x = 278,927.02
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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.