Finding the Fourth Proportional to 221,356.50, 305,472.06 and 125,869.08
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Solution
The fourth proportional to 221,356.50, 305,472.06 and 125,869.08 is: 173,699.38
Step by Step Solution
- Step 1: Write the proportion equation
221,356.50 : 305,472.06 = 125,869.08 : x - Step 2: Convert to fraction form
221,356.50/305,472.06 = 125,869.08/x - Step 3: Cross multiply
221,356.50x = 305,472.06 × 125,869.08 - Step 4: Simplify right side
221,356.50x = 38,449,487,157.90 - Step 5: Solve for x
x = 38,449,487,157.90/221,356.50 - Step 6: Final answer
x = 173,699.38
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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.