Finding the Fourth Proportional to 220,373.12, 304,130.88 and 129,733.76
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Solution
The fourth proportional to 220,373.12, 304,130.88 and 129,733.76 is: 179,041.99
Step by Step Solution
- Step 1: Write the proportion equation
220,373.12 : 304,130.88 = 129,733.76 : x - Step 2: Convert to fraction form
220,373.12/304,130.88 = 129,733.76/x - Step 3: Cross multiply
220,373.12x = 304,130.88 × 129,733.76 - Step 4: Simplify right side
220,373.12x = 39,456,042,594.51 - Step 5: Solve for x
x = 39,456,042,594.51/220,373.12 - Step 6: Final answer
x = 179,041.99
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1.5x scale
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.