Finding the Fourth Proportional to 221,305.84, 305,400.62 and 125,812.56
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Solution
The fourth proportional to 221,305.84, 305,400.62 and 125,812.56 is: 173,620.51
Step by Step Solution
- Step 1: Write the proportion equation
221,305.84 : 305,400.62 = 125,812.56 : x - Step 2: Convert to fraction form
221,305.84/305,400.62 = 125,812.56/x - Step 3: Cross multiply
221,305.84x = 305,400.62 × 125,812.56 - Step 4: Simplify right side
221,305.84x = 38,423,233,827.79 - Step 5: Solve for x
x = 38,423,233,827.79/221,305.84 - Step 6: Final answer
x = 173,620.51
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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.