Finding the Fourth Proportional to 486,497.80, 729,746.70 and 220,252.36
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Solution
The fourth proportional to 486,497.80, 729,746.70 and 220,252.36 is: 330,378.54
Step by Step Solution
- Step 1: Write the proportion equation
486,497.80 : 729,746.70 = 220,252.36 : x - Step 2: Convert to fraction form
486,497.80/729,746.70 = 220,252.36/x - Step 3: Cross multiply
486,497.80x = 729,746.70 × 220,252.36 - Step 4: Simplify right side
486,497.80x = 160,728,432,877.21 - Step 5: Solve for x
x = 160,728,432,877.21/486,497.80 - Step 6: Final answer
x = 330,378.54
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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.