Finding the Fourth Proportional to 288,970.97, 398,860.07 and 168,135.59
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Solution
The fourth proportional to 288,970.97, 398,860.07 and 168,135.59 is: 232,073.73
Step by Step Solution
- Step 1: Write the proportion equation
288,970.97 : 398,860.07 = 168,135.59 : x - Step 2: Convert to fraction form
288,970.97/398,860.07 = 168,135.59/x - Step 3: Cross multiply
288,970.97x = 398,860.07 × 168,135.59 - Step 4: Simplify right side
288,970.97x = 67,062,570,361.91 - Step 5: Solve for x
x = 67,062,570,361.91/288,970.97 - Step 6: Final answer
x = 232,073.73
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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.