Finding the Fourth Proportional to 371,910.84, 513,215.16 and 202,143.48
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Solution
The fourth proportional to 371,910.84, 513,215.16 and 202,143.48 is: 278,946.15
Step by Step Solution
- Step 1: Write the proportion equation
371,910.84 : 513,215.16 = 202,143.48 : x - Step 2: Convert to fraction form
371,910.84/513,215.16 = 202,143.48/x - Step 3: Cross multiply
371,910.84x = 513,215.16 × 202,143.48 - Step 4: Simplify right side
371,910.84x = 103,743,098,431.16 - Step 5: Solve for x
x = 103,743,098,431.16/371,910.84 - Step 6: Final answer
x = 278,946.15
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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.