Finding the Fourth Proportional to 217,647.07, 326,404.99 and 77,397.19
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Solution
The fourth proportional to 217,647.07, 326,404.99 and 77,397.19 is: 116,072.45
Step by Step Solution
- Step 1: Write the proportion equation
217,647.07 : 326,404.99 = 77,397.19 : x - Step 2: Convert to fraction form
217,647.07/326,404.99 = 77,397.19/x - Step 3: Cross multiply
217,647.07x = 326,404.99 × 77,397.19 - Step 4: Simplify right side
217,647.07x = 25,262,828,308.71 - Step 5: Solve for x
x = 25,262,828,308.71/217,647.07 - Step 6: Final answer
x = 116,072.45
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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.