Finding the Fourth Proportional to 316,449.20, 436,704.00 and 173,206.17
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Solution
The fourth proportional to 316,449.20, 436,704.00 and 173,206.17 is: 239,026.76
Step by Step Solution
- Step 1: Write the proportion equation
316,449.20 : 436,704.00 = 173,206.17 : x - Step 2: Convert to fraction form
316,449.20/436,704.00 = 173,206.17/x - Step 3: Cross multiply
316,449.20x = 436,704.00 × 173,206.17 - Step 4: Simplify right side
316,449.20x = 75,639,824,214.13 - Step 5: Solve for x
x = 75,639,824,214.13/316,449.20 - Step 6: Final answer
x = 239,026.76
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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.