Finding the Fourth Proportional to 316,362.99, 436,566.91 and 173,129.07
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Solution
The fourth proportional to 316,362.99, 436,566.91 and 173,129.07 is: 238,910.45
Step by Step Solution
- Step 1: Write the proportion equation
316,362.99 : 436,566.91 = 173,129.07 : x - Step 2: Convert to fraction form
316,362.99/436,566.91 = 173,129.07/x - Step 3: Cross multiply
316,362.99x = 436,566.91 × 173,129.07 - Step 4: Simplify right side
316,362.99x = 75,582,423,121.07 - Step 5: Solve for x
x = 75,582,423,121.07/316,362.99 - Step 6: Final answer
x = 238,910.45
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1.5x scale
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.