Finding the Fourth Proportional to 328,391.12, 491,848.52 and 199,959.54
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Solution
The fourth proportional to 328,391.12, 491,848.52 and 199,959.54 is: 299,489.84
Step by Step Solution
- Step 1: Write the proportion equation
328,391.12 : 491,848.52 = 199,959.54 : x - Step 2: Convert to fraction form
328,391.12/491,848.52 = 199,959.54/x - Step 3: Cross multiply
328,391.12x = 491,848.52 × 199,959.54 - Step 4: Simplify right side
328,391.12x = 98,349,803,808.88 - Step 5: Solve for x
x = 98,349,803,808.88/328,391.12 - Step 6: Final answer
x = 299,489.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.