Finding the Fourth Proportional to 226,543.90, 312,638.60 and 124,577.09
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Solution
The fourth proportional to 226,543.90, 312,638.60 and 124,577.09 is: 171,920.79
Step by Step Solution
- Step 1: Write the proportion equation
226,543.90 : 312,638.60 = 124,577.09 : x - Step 2: Convert to fraction form
226,543.90/312,638.60 = 124,577.09/x - Step 3: Cross multiply
226,543.90x = 312,638.60 × 124,577.09 - Step 4: Simplify right side
226,543.90x = 38,947,607,009.67 - Step 5: Solve for x
x = 38,947,607,009.67/226,543.90 - Step 6: Final answer
x = 171,920.79
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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.