Finding the Fourth Proportional to 288,825.13, 398,699.99 and 175,687.21
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Solution
The fourth proportional to 288,825.13, 398,699.99 and 175,687.21 is: 242,522.14
Step by Step Solution
- Step 1: Write the proportion equation
288,825.13 : 398,699.99 = 175,687.21 : x - Step 2: Convert to fraction form
288,825.13/398,699.99 = 175,687.21/x - Step 3: Cross multiply
288,825.13x = 398,699.99 × 175,687.21 - Step 4: Simplify right side
288,825.13x = 70,046,488,870.13 - Step 5: Solve for x
x = 70,046,488,870.13/288,825.13 - Step 6: Final answer
x = 242,522.14
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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.