Finding the Fourth Proportional to 221,322.24, 305,332.92 and 140,794.20
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Solution
The fourth proportional to 221,322.24, 305,332.92 and 140,794.20 is: 194,237.62
Step by Step Solution
- Step 1: Write the proportion equation
221,322.24 : 305,332.92 = 140,794.20 : x - Step 2: Convert to fraction form
221,322.24/305,332.92 = 140,794.20/x - Step 3: Cross multiply
221,322.24x = 305,332.92 × 140,794.20 - Step 4: Simplify right side
221,322.24x = 42,989,104,205.06 - Step 5: Solve for x
x = 42,989,104,205.06/221,322.24 - Step 6: Final answer
x = 194,237.62
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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.