Finding the Fourth Proportional to 386,542.50, 533,486.97 and 235,726.98
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Solution
The fourth proportional to 386,542.50, 533,486.97 and 235,726.98 is: 325,338.80
Step by Step Solution
- Step 1: Write the proportion equation
386,542.50 : 533,486.97 = 235,726.98 : x - Step 2: Convert to fraction form
386,542.50/533,486.97 = 235,726.98/x - Step 3: Cross multiply
386,542.50x = 533,486.97 × 235,726.98 - Step 4: Simplify right side
386,542.50x = 125,757,272,307.45 - Step 5: Solve for x
x = 125,757,272,307.45/386,542.50 - Step 6: Final answer
x = 325,338.80
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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.