Finding the Fourth Proportional to 329,239.98, 493,520.99 and 129,479.40
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Solution
The fourth proportional to 329,239.98, 493,520.99 and 129,479.40 is: 194,085.79
Step by Step Solution
- Step 1: Write the proportion equation
329,239.98 : 493,520.99 = 129,479.40 : x - Step 2: Convert to fraction form
329,239.98/493,520.99 = 129,479.40/x - Step 3: Cross multiply
329,239.98x = 493,520.99 × 129,479.40 - Step 4: Simplify right side
329,239.98x = 63,900,801,025.21 - Step 5: Solve for x
x = 63,900,801,025.21/329,239.98 - Step 6: Final answer
x = 194,085.79
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1.5x scale
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.