Finding the Fourth Proportional to 347,389.24, 518,163.14 and 315,497.92
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Solution
The fourth proportional to 347,389.24, 518,163.14 and 315,497.92 is: 470,594.29
Step by Step Solution
- Step 1: Write the proportion equation
347,389.24 : 518,163.14 = 315,497.92 : x - Step 2: Convert to fraction form
347,389.24/518,163.14 = 315,497.92/x - Step 3: Cross multiply
347,389.24x = 518,163.14 × 315,497.92 - Step 4: Simplify right side
347,389.24x = 163,479,392,890.67 - Step 5: Solve for x
x = 163,479,392,890.67/347,389.24 - Step 6: Final answer
x = 470,594.29
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.