Finding the Fourth Proportional to 288,756.90, 433,197.16 and 86,368.88
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Solution
The fourth proportional to 288,756.90, 433,197.16 and 86,368.88 is: 129,571.80
Step by Step Solution
- Step 1: Write the proportion equation
288,756.90 : 433,197.16 = 86,368.88 : x - Step 2: Convert to fraction form
288,756.90/433,197.16 = 86,368.88/x - Step 3: Cross multiply
288,756.90x = 433,197.16 × 86,368.88 - Step 4: Simplify right side
288,756.90x = 37,414,750,930.55 - Step 5: Solve for x
x = 37,414,750,930.55/288,756.90 - Step 6: Final answer
x = 129,571.80
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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.