Finding the Fourth Proportional to 316,448.98, 436,703.69 and 173,205.95
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Solution
The fourth proportional to 316,448.98, 436,703.69 and 173,205.95 is: 239,026.45
Step by Step Solution
- Step 1: Write the proportion equation
316,448.98 : 436,703.69 = 173,205.95 : x - Step 2: Convert to fraction form
316,448.98/436,703.69 = 173,205.95/x - Step 3: Cross multiply
316,448.98x = 436,703.69 × 173,205.95 - Step 4: Simplify right side
316,448.98x = 75,639,675,744.45 - Step 5: Solve for x
x = 75,639,675,744.45/316,448.98 - Step 6: Final answer
x = 239,026.45
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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.