Finding the Fourth Proportional to 411,422.36, 616,911.62 and 186,660.14
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Solution
The fourth proportional to 411,422.36, 616,911.62 and 186,660.14 is: 279,889.53
Step by Step Solution
- Step 1: Write the proportion equation
411,422.36 : 616,911.62 = 186,660.14 : x - Step 2: Convert to fraction form
411,422.36/616,911.62 = 186,660.14/x - Step 3: Cross multiply
411,422.36x = 616,911.62 × 186,660.14 - Step 4: Simplify right side
411,422.36x = 115,152,809,356.83 - Step 5: Solve for x
x = 115,152,809,356.83/411,422.36 - Step 6: Final answer
x = 279,889.53
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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.