Finding the Fourth Proportional to 660,029.92, 990,036.52 and 210,745.09
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Solution
The fourth proportional to 660,029.92, 990,036.52 and 210,745.09 is: 316,114.97
Step by Step Solution
- Step 1: Write the proportion equation
660,029.92 : 990,036.52 = 210,745.09 : x - Step 2: Convert to fraction form
660,029.92/990,036.52 = 210,745.09/x - Step 3: Cross multiply
660,029.92x = 990,036.52 × 210,745.09 - Step 4: Simplify right side
660,029.92x = 208,645,337,406.81 - Step 5: Solve for x
x = 208,645,337,406.81/660,029.92 - Step 6: Final answer
x = 316,114.97
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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.