Finding the Fourth Proportional to 371,855.48, 513,164.52 and 202,089.60
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Solution
The fourth proportional to 371,855.48, 513,164.52 and 202,089.60 is: 278,885.80
Step by Step Solution
- Step 1: Write the proportion equation
371,855.48 : 513,164.52 = 202,089.60 : x - Step 2: Convert to fraction form
371,855.48/513,164.52 = 202,089.60/x - Step 3: Cross multiply
371,855.48x = 513,164.52 × 202,089.60 - Step 4: Simplify right side
371,855.48x = 103,705,212,580.99 - Step 5: Solve for x
x = 103,705,212,580.99/371,855.48 - Step 6: Final answer
x = 278,885.80
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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.