Finding the Fourth Proportional to 329,779.36, 494,335.12 and 130,240.44
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Solution
The fourth proportional to 329,779.36, 494,335.12 and 130,240.44 is: 195,228.78
Step by Step Solution
- Step 1: Write the proportion equation
329,779.36 : 494,335.12 = 130,240.44 : x - Step 2: Convert to fraction form
329,779.36/494,335.12 = 130,240.44/x - Step 3: Cross multiply
329,779.36x = 494,335.12 × 130,240.44 - Step 4: Simplify right side
329,779.36x = 64,382,423,536.25 - Step 5: Solve for x
x = 64,382,423,536.25/329,779.36 - Step 6: Final answer
x = 195,228.78
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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.