Finding the Fourth Proportional to 399,622.17, 599,439.87 and 133,384.08
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Solution
The fourth proportional to 399,622.17, 599,439.87 and 133,384.08 is: 200,078.33
Step by Step Solution
- Step 1: Write the proportion equation
399,622.17 : 599,439.87 = 133,384.08 : x - Step 2: Convert to fraction form
399,622.17/599,439.87 = 133,384.08/x - Step 3: Cross multiply
399,622.17x = 599,439.87 × 133,384.08 - Step 4: Simplify right side
399,622.17x = 79,955,735,575.27 - Step 5: Solve for x
x = 79,955,735,575.27/399,622.17 - Step 6: Final answer
x = 200,078.33
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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.