Finding the Fourth Proportional to 288,542.88, 432,901.80 and 138,740.67
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Solution
The fourth proportional to 288,542.88, 432,901.80 and 138,740.67 is: 208,153.07
Step by Step Solution
- Step 1: Write the proportion equation
288,542.88 : 432,901.80 = 138,740.67 : x - Step 2: Convert to fraction form
288,542.88/432,901.80 = 138,740.67/x - Step 3: Cross multiply
288,542.88x = 432,901.80 × 138,740.67 - Step 4: Simplify right side
288,542.88x = 60,061,085,776.21 - Step 5: Solve for x
x = 60,061,085,776.21/288,542.88 - Step 6: Final answer
x = 208,153.07
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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.