Finding the Fourth Proportional to 286,967.18, 429,857.84 and 168,281.12
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Solution
The fourth proportional to 286,967.18, 429,857.84 and 168,281.12 is: 252,073.98
Step by Step Solution
- Step 1: Write the proportion equation
286,967.18 : 429,857.84 = 168,281.12 : x - Step 2: Convert to fraction form
286,967.18/429,857.84 = 168,281.12/x - Step 3: Cross multiply
286,967.18x = 429,857.84 × 168,281.12 - Step 4: Simplify right side
286,967.18x = 72,336,958,755.98 - Step 5: Solve for x
x = 72,336,958,755.98/286,967.18 - Step 6: Final answer
x = 252,073.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.