Finding the Fourth Proportional to 217,545.24, 326,449.26 and 77,293.20
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Solution
The fourth proportional to 217,545.24, 326,449.26 and 77,293.20 is: 115,986.49
Step by Step Solution
- Step 1: Write the proportion equation
217,545.24 : 326,449.26 = 77,293.20 : x - Step 2: Convert to fraction form
217,545.24/326,449.26 = 77,293.20/x - Step 3: Cross multiply
217,545.24x = 326,449.26 × 77,293.20 - Step 4: Simplify right side
217,545.24x = 25,232,307,943.03 - Step 5: Solve for x
x = 25,232,307,943.03/217,545.24 - Step 6: Final answer
x = 115,986.49
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1.5x scale
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.