Finding the Fourth Proportional to 380,328.91, 524,837.67 and 208,243.75
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Solution
The fourth proportional to 380,328.91, 524,837.67 and 208,243.75 is: 287,367.49
Step by Step Solution
- Step 1: Write the proportion equation
380,328.91 : 524,837.67 = 208,243.75 : x - Step 2: Convert to fraction form
380,328.91/524,837.67 = 208,243.75/x - Step 3: Cross multiply
380,328.91x = 524,837.67 × 208,243.75 - Step 4: Simplify right side
380,328.91x = 109,294,164,542.06 - Step 5: Solve for x
x = 109,294,164,542.06/380,328.91 - Step 6: Final answer
x = 287,367.49
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1.5x scale
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.