Finding the Fourth Proportional to 642,380.19, 963,570.99 and 193,101.02
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Solution
The fourth proportional to 642,380.19, 963,570.99 and 193,101.02 is: 289,651.74
Step by Step Solution
- Step 1: Write the proportion equation
642,380.19 : 963,570.99 = 193,101.02 : x - Step 2: Convert to fraction form
642,380.19/963,570.99 = 193,101.02/x - Step 3: Cross multiply
642,380.19x = 963,570.99 × 193,101.02 - Step 4: Simplify right side
642,380.19x = 186,066,538,089.86 - Step 5: Solve for x
x = 186,066,538,089.86/642,380.19 - Step 6: Final answer
x = 289,651.74
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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.