Finding the Fourth Proportional to 674,132.21, 1,011,201.09 and 168,691.81
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Solution
The fourth proportional to 674,132.21, 1,011,201.09 and 168,691.81 is: 253,038.41
Step by Step Solution
- Step 1: Write the proportion equation
674,132.21 : 1,011,201.09 = 168,691.81 : x - Step 2: Convert to fraction form
674,132.21/1,011,201.09 = 168,691.81/x - Step 3: Cross multiply
674,132.21x = 1,011,201.09 × 168,691.81 - Step 4: Simplify right side
674,132.21x = 170,581,342,146.07 - Step 5: Solve for x
x = 170,581,342,146.07/674,132.21 - Step 6: Final answer
x = 253,038.41
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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.