Finding the Fourth Proportional to 431,896.24, 647,968.86 and 132,421.02
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Solution
The fourth proportional to 431,896.24, 647,968.86 and 132,421.02 is: 198,669.70
Step by Step Solution
- Step 1: Write the proportion equation
431,896.24 : 647,968.86 = 132,421.02 : x - Step 2: Convert to fraction form
431,896.24/647,968.86 = 132,421.02/x - Step 3: Cross multiply
431,896.24x = 647,968.86 × 132,421.02 - Step 4: Simplify right side
431,896.24x = 85,804,697,369.44 - Step 5: Solve for x
x = 85,804,697,369.44/431,896.24 - Step 6: Final answer
x = 198,669.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.