Finding the Fourth Proportional to 221,358.17, 305,472.87 and 125,864.88
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Solution
The fourth proportional to 221,358.17, 305,472.87 and 125,864.88 is: 173,692.74
Step by Step Solution
- Step 1: Write the proportion equation
221,358.17 : 305,472.87 = 125,864.88 : x - Step 2: Convert to fraction form
221,358.17/305,472.87 = 125,864.88/x - Step 3: Cross multiply
221,358.17x = 305,472.87 × 125,864.88 - Step 4: Simplify right side
221,358.17x = 38,448,306,125.81 - Step 5: Solve for x
x = 38,448,306,125.81/221,358.17 - Step 6: Final answer
x = 173,692.74
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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.