Finding the Fourth Proportional to 642,670.11, 964,088.09 and 216,021.95
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Solution
The fourth proportional to 642,670.11, 964,088.09 and 216,021.95 is: 324,060.80
Step by Step Solution
- Step 1: Write the proportion equation
642,670.11 : 964,088.09 = 216,021.95 : x - Step 2: Convert to fraction form
642,670.11/964,088.09 = 216,021.95/x - Step 3: Cross multiply
642,670.11x = 964,088.09 × 216,021.95 - Step 4: Simplify right side
642,670.11x = 208,264,189,173.58 - Step 5: Solve for x
x = 208,264,189,173.58/642,670.11 - Step 6: Final answer
x = 324,060.80
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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.