Finding the Fourth Proportional to 226,711.98, 312,864.93 and 124,738.79
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Solution
The fourth proportional to 226,711.98, 312,864.93 and 124,738.79 is: 172,140.84
Step by Step Solution
- Step 1: Write the proportion equation
226,711.98 : 312,864.93 = 124,738.79 : x - Step 2: Convert to fraction form
226,711.98/312,864.93 = 124,738.79/x - Step 3: Cross multiply
226,711.98x = 312,864.93 × 124,738.79 - Step 4: Simplify right side
226,711.98x = 39,026,391,237.31 - Step 5: Solve for x
x = 39,026,391,237.31/226,711.98 - Step 6: Final answer
x = 172,140.84
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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.