Finding the Fourth Proportional to 201,956.28, 278,654.76 and 115,909.98
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Solution
The fourth proportional to 201,956.28, 278,654.76 and 115,909.98 is: 159,930.00
Step by Step Solution
- Step 1: Write the proportion equation
201,956.28 : 278,654.76 = 115,909.98 : x - Step 2: Convert to fraction form
201,956.28/278,654.76 = 115,909.98/x - Step 3: Cross multiply
201,956.28x = 278,654.76 × 115,909.98 - Step 4: Simplify right side
201,956.28x = 32,298,867,658.50 - Step 5: Solve for x
x = 32,298,867,658.50/201,956.28 - Step 6: Final answer
x = 159,930.00
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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.