Finding the Fourth Proportional to 288,813.68, 433,035.98 and 138,755.41
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Solution
The fourth proportional to 288,813.68, 433,035.98 and 138,755.41 is: 208,044.45
Step by Step Solution
- Step 1: Write the proportion equation
288,813.68 : 433,035.98 = 138,755.41 : x - Step 2: Convert to fraction form
288,813.68/433,035.98 = 138,755.41/x - Step 3: Cross multiply
288,813.68x = 433,035.98 × 138,755.41 - Step 4: Simplify right side
288,813.68x = 60,086,083,131.36 - Step 5: Solve for x
x = 60,086,083,131.36/288,813.68 - Step 6: Final answer
x = 208,044.45
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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.