Finding the Fourth Proportional to 316,344.99, 474,517.49 and 138,853.55
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Solution
The fourth proportional to 316,344.99, 474,517.49 and 138,853.55 is: 208,280.32
Step by Step Solution
- Step 1: Write the proportion equation
316,344.99 : 474,517.49 = 138,853.55 : x - Step 2: Convert to fraction form
316,344.99/474,517.49 = 138,853.55/x - Step 3: Cross multiply
316,344.99x = 474,517.49 × 138,853.55 - Step 4: Simplify right side
316,344.99x = 65,888,434,956.73 - Step 5: Solve for x
x = 65,888,434,956.73/316,344.99 - Step 6: Final answer
x = 208,280.32
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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.