Finding the Fourth Proportional to 338,397.21, 466,988.13 and 202,436.87
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Solution
The fourth proportional to 338,397.21, 466,988.13 and 202,436.87 is: 279,362.86
Step by Step Solution
- Step 1: Write the proportion equation
338,397.21 : 466,988.13 = 202,436.87 : x - Step 2: Convert to fraction form
338,397.21/466,988.13 = 202,436.87/x - Step 3: Cross multiply
338,397.21x = 466,988.13 × 202,436.87 - Step 4: Simplify right side
338,397.21x = 94,535,613,029.41 - Step 5: Solve for x
x = 94,535,613,029.41/338,397.21 - Step 6: Final answer
x = 279,362.86
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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.