Finding the Fourth Proportional to 402,194.88, 603,294.12 and 135,956.80
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Solution
The fourth proportional to 402,194.88, 603,294.12 and 135,956.80 is: 203,935.81
Step by Step Solution
- Step 1: Write the proportion equation
402,194.88 : 603,294.12 = 135,956.80 : x - Step 2: Convert to fraction form
402,194.88/603,294.12 = 135,956.80/x - Step 3: Cross multiply
402,194.88x = 603,294.12 × 135,956.80 - Step 4: Simplify right side
402,194.88x = 82,021,938,014.02 - Step 5: Solve for x
x = 82,021,938,014.02/402,194.88 - Step 6: Final answer
x = 203,935.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.