Finding the Fourth Proportional to 371,742.88, 513,009.84 and 201,979.84
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Solution
The fourth proportional to 371,742.88, 513,009.84 and 201,979.84 is: 278,734.71
Step by Step Solution
- Step 1: Write the proportion equation
371,742.88 : 513,009.84 = 201,979.84 : x - Step 2: Convert to fraction form
371,742.88/513,009.84 = 201,979.84/x - Step 3: Cross multiply
371,742.88x = 513,009.84 × 201,979.84 - Step 4: Simplify right side
371,742.88x = 103,617,645,401.63 - Step 5: Solve for x
x = 103,617,645,401.63/371,742.88 - Step 6: Final answer
x = 278,734.71
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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.