Finding the Fourth Proportional to 358,272.99, 494,428.64 and 197,139.87
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Solution
The fourth proportional to 358,272.99, 494,428.64 and 197,139.87 is: 272,059.57
Step by Step Solution
- Step 1: Write the proportion equation
358,272.99 : 494,428.64 = 197,139.87 : x - Step 2: Convert to fraction form
358,272.99/494,428.64 = 197,139.87/x - Step 3: Cross multiply
358,272.99x = 494,428.64 × 197,139.87 - Step 4: Simplify right side
358,272.99x = 97,471,596,828.18 - Step 5: Solve for x
x = 97,471,596,828.18/358,272.99 - Step 6: Final answer
x = 272,059.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.