Finding the Fourth Proportional to 288,838.68, 433,470.84 and 137,036.31
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Solution
The fourth proportional to 288,838.68, 433,470.84 and 137,036.31 is: 205,655.44
Step by Step Solution
- Step 1: Write the proportion equation
288,838.68 : 433,470.84 = 137,036.31 : x - Step 2: Convert to fraction form
288,838.68/433,470.84 = 137,036.31/x - Step 3: Cross multiply
288,838.68x = 433,470.84 × 137,036.31 - Step 4: Simplify right side
288,838.68x = 59,401,244,406.20 - Step 5: Solve for x
x = 59,401,244,406.20/288,838.68 - Step 6: Final answer
x = 205,655.44
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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.