Finding the Fourth Proportional to 316,362.28, 436,579.98 and 173,122.35
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Solution
The fourth proportional to 316,362.28, 436,579.98 and 173,122.35 is: 238,908.86
Step by Step Solution
- Step 1: Write the proportion equation
316,362.28 : 436,579.98 = 173,122.35 : x - Step 2: Convert to fraction form
316,362.28/436,579.98 = 173,122.35/x - Step 3: Cross multiply
316,362.28x = 436,579.98 × 173,122.35 - Step 4: Simplify right side
316,362.28x = 75,581,752,100.55 - Step 5: Solve for x
x = 75,581,752,100.55/316,362.28 - Step 6: Final answer
x = 238,908.86
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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.