Finding the Fourth Proportional to 221,251.61, 305,326.55 and 125,776.70
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Solution
The fourth proportional to 221,251.61, 305,326.55 and 125,776.70 is: 173,571.46
Step by Step Solution
- Step 1: Write the proportion equation
221,251.61 : 305,326.55 = 125,776.70 : x - Step 2: Convert to fraction form
221,251.61/305,326.55 = 125,776.70/x - Step 3: Cross multiply
221,251.61x = 305,326.55 × 125,776.70 - Step 4: Simplify right side
221,251.61x = 38,402,963,725.87 - Step 5: Solve for x
x = 38,402,963,725.87/221,251.61 - Step 6: Final answer
x = 173,571.46
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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.