Finding the Fourth Proportional to 255,607.12, 383,432.28 and 68,628.88
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Solution
The fourth proportional to 255,607.12, 383,432.28 and 68,628.88 is: 102,949.12
Step by Step Solution
- Step 1: Write the proportion equation
255,607.12 : 383,432.28 = 68,628.88 : x - Step 2: Convert to fraction form
255,607.12/383,432.28 = 68,628.88/x - Step 3: Cross multiply
255,607.12x = 383,432.28 × 68,628.88 - Step 4: Simplify right side
255,607.12x = 26,314,527,932.25 - Step 5: Solve for x
x = 26,314,527,932.25/255,607.12 - Step 6: Final answer
x = 102,949.12
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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.