Finding the Fourth Proportional to 454,416.40, 681,624.60 and 134,579.80
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Solution
The fourth proportional to 454,416.40, 681,624.60 and 134,579.80 is: 201,869.70
Step by Step Solution
- Step 1: Write the proportion equation
454,416.40 : 681,624.60 = 134,579.80 : x - Step 2: Convert to fraction form
454,416.40/681,624.60 = 134,579.80/x - Step 3: Cross multiply
454,416.40x = 681,624.60 × 134,579.80 - Step 4: Simplify right side
454,416.40x = 91,732,902,343.08 - Step 5: Solve for x
x = 91,732,902,343.08/454,416.40 - Step 6: Final answer
x = 201,869.70
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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.