Finding the Fourth Proportional to 371,883.78, 513,199.68 and 202,117.92
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Solution
The fourth proportional to 371,883.78, 513,199.68 and 202,117.92 is: 278,922.76
Step by Step Solution
- Step 1: Write the proportion equation
371,883.78 : 513,199.68 = 202,117.92 : x - Step 2: Convert to fraction form
371,883.78/513,199.68 = 202,117.92/x - Step 3: Cross multiply
371,883.78x = 513,199.68 × 202,117.92 - Step 4: Simplify right side
371,883.78x = 103,726,851,866.27 - Step 5: Solve for x
x = 103,726,851,866.27/371,883.78 - Step 6: Final answer
x = 278,922.76
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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.