Finding the Fourth Proportional to 199,965.98, 275,959.80 and 109,320.14
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Solution
The fourth proportional to 199,965.98, 275,959.80 and 109,320.14 is: 150,865.48
Step by Step Solution
- Step 1: Write the proportion equation
199,965.98 : 275,959.80 = 109,320.14 : x - Step 2: Convert to fraction form
199,965.98/275,959.80 = 109,320.14/x - Step 3: Cross multiply
199,965.98x = 275,959.80 × 109,320.14 - Step 4: Simplify right side
199,965.98x = 30,167,964,660.27 - Step 5: Solve for x
x = 30,167,964,660.27/199,965.98 - Step 6: Final answer
x = 150,865.48
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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.