Finding the Fourth Proportional to 316,052.28, 474,078.88 and 129,063.80
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Solution
The fourth proportional to 316,052.28, 474,078.88 and 129,063.80 is: 193,595.89
Step by Step Solution
- Step 1: Write the proportion equation
316,052.28 : 474,078.88 = 129,063.80 : x - Step 2: Convert to fraction form
316,052.28/474,078.88 = 129,063.80/x - Step 3: Cross multiply
316,052.28x = 474,078.88 × 129,063.80 - Step 4: Simplify right side
316,052.28x = 61,186,421,752.54 - Step 5: Solve for x
x = 61,186,421,752.54/316,052.28 - Step 6: Final answer
x = 193,595.89
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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.