Finding the Fourth Proportional to 221,341.61, 305,420.60 and 125,837.75
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Solution
The fourth proportional to 221,341.61, 305,420.60 and 125,837.75 is: 173,638.57
Step by Step Solution
- Step 1: Write the proportion equation
221,341.61 : 305,420.60 = 125,837.75 : x - Step 2: Convert to fraction form
221,341.61/305,420.60 = 125,837.75/x - Step 3: Cross multiply
221,341.61x = 305,420.60 × 125,837.75 - Step 4: Simplify right side
221,341.61x = 38,433,438,951.36 - Step 5: Solve for x
x = 38,433,438,951.36/221,341.61 - Step 6: Final answer
x = 173,638.57
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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.