Finding the Fourth Proportional to 268,102.80, 402,208.20 and 78,562.80
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Solution
The fourth proportional to 268,102.80, 402,208.20 and 78,562.80 is: 117,860.02
Step by Step Solution
- Step 1: Write the proportion equation
268,102.80 : 402,208.20 = 78,562.80 : x - Step 2: Convert to fraction form
268,102.80/402,208.20 = 78,562.80/x - Step 3: Cross multiply
268,102.80x = 402,208.20 × 78,562.80 - Step 4: Simplify right side
268,102.80x = 31,598,602,374.96 - Step 5: Solve for x
x = 31,598,602,374.96/268,102.80 - Step 6: Final answer
x = 117,860.02
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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.