Finding the Fourth Proportional to 372,416.50, 513,930.45 and 202,647.70
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Solution
The fourth proportional to 372,416.50, 513,930.45 and 202,647.70 is: 279,651.48
Step by Step Solution
- Step 1: Write the proportion equation
372,416.50 : 513,930.45 = 202,647.70 : x - Step 2: Convert to fraction form
372,416.50/513,930.45 = 202,647.70/x - Step 3: Cross multiply
372,416.50x = 513,930.45 × 202,647.70 - Step 4: Simplify right side
372,416.50x = 104,146,823,652.47 - Step 5: Solve for x
x = 104,146,823,652.47/372,416.50 - Step 6: Final answer
x = 279,651.48
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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.