Finding the Fourth Proportional to 372,423.15, 513,940.68 and 202,657.41
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Solution
The fourth proportional to 372,423.15, 513,940.68 and 202,657.41 is: 279,665.45
Step by Step Solution
- Step 1: Write the proportion equation
372,423.15 : 513,940.68 = 202,657.41 : x - Step 2: Convert to fraction form
372,423.15/513,940.68 = 202,657.41/x - Step 3: Cross multiply
372,423.15x = 513,940.68 × 202,657.41 - Step 4: Simplify right side
372,423.15x = 104,153,887,102.44 - Step 5: Solve for x
x = 104,153,887,102.44/372,423.15 - Step 6: Final answer
x = 279,665.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.