Finding the Fourth Proportional to 431,911.08, 647,991.06 and 132,435.78
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Solution
The fourth proportional to 431,911.08, 647,991.06 and 132,435.78 is: 198,691.83
Step by Step Solution
- Step 1: Write the proportion equation
431,911.08 : 647,991.06 = 132,435.78 : x - Step 2: Convert to fraction form
431,911.08/647,991.06 = 132,435.78/x - Step 3: Cross multiply
431,911.08x = 647,991.06 × 132,435.78 - Step 4: Simplify right side
431,911.08x = 85,817,201,464.13 - Step 5: Solve for x
x = 85,817,201,464.13/431,911.08 - Step 6: Final answer
x = 198,691.83
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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.