Finding the Fourth Proportional to 386,554.25, 533,471.51 and 216,799.31
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Solution
The fourth proportional to 386,554.25, 533,471.51 and 216,799.31 is: 299,197.99
Step by Step Solution
- Step 1: Write the proportion equation
386,554.25 : 533,471.51 = 216,799.31 : x - Step 2: Convert to fraction form
386,554.25/533,471.51 = 216,799.31/x - Step 3: Cross multiply
386,554.25x = 533,471.51 × 216,799.31 - Step 4: Simplify right side
386,554.25x = 115,656,257,148.34 - Step 5: Solve for x
x = 115,656,257,148.34/386,554.25 - Step 6: Final answer
x = 299,197.99
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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.