Finding the Fourth Proportional to 288,953.01, 433,515.36 and 139,149.99
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Solution
The fourth proportional to 288,953.01, 433,515.36 and 139,149.99 is: 208,766.33
Step by Step Solution
- Step 1: Write the proportion equation
288,953.01 : 433,515.36 = 139,149.99 : x - Step 2: Convert to fraction form
288,953.01/433,515.36 = 139,149.99/x - Step 3: Cross multiply
288,953.01x = 433,515.36 × 139,149.99 - Step 4: Simplify right side
288,953.01x = 60,323,658,008.85 - Step 5: Solve for x
x = 60,323,658,008.85/288,953.01 - Step 6: Final answer
x = 208,766.33
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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.