Finding the Fourth Proportional to 329,122.98, 493,863.08 and 139,689.90
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Solution
The fourth proportional to 329,122.98, 493,863.08 and 139,689.90 is: 209,610.66
Step by Step Solution
- Step 1: Write the proportion equation
329,122.98 : 493,863.08 = 139,689.90 : x - Step 2: Convert to fraction form
329,122.98/493,863.08 = 139,689.90/x - Step 3: Cross multiply
329,122.98x = 493,863.08 × 139,689.90 - Step 4: Simplify right side
329,122.98x = 68,987,683,560.44 - Step 5: Solve for x
x = 68,987,683,560.44/329,122.98 - Step 6: Final answer
x = 209,610.66
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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.