Finding the Fourth Proportional to 221,362.48, 305,478.80 and 125,869.17
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Solution
The fourth proportional to 221,362.48, 305,478.80 and 125,869.17 is: 173,698.65
Step by Step Solution
- Step 1: Write the proportion equation
221,362.48 : 305,478.80 = 125,869.17 : x - Step 2: Convert to fraction form
221,362.48/305,478.80 = 125,869.17/x - Step 3: Cross multiply
221,362.48x = 305,478.80 × 125,869.17 - Step 4: Simplify right side
221,362.48x = 38,450,363,008.60 - Step 5: Solve for x
x = 38,450,363,008.60/221,362.48 - Step 6: Final answer
x = 173,698.65
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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.