Finding the Fourth Proportional to 286,915.68, 430,397.60 and 87,237.80
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Solution
The fourth proportional to 286,915.68, 430,397.60 and 87,237.80 is: 130,864.01
Step by Step Solution
- Step 1: Write the proportion equation
286,915.68 : 430,397.60 = 87,237.80 : x - Step 2: Convert to fraction form
286,915.68/430,397.60 = 87,237.80/x - Step 3: Cross multiply
286,915.68x = 430,397.60 × 87,237.80 - Step 4: Simplify right side
286,915.68x = 37,546,937,161.10 - Step 5: Solve for x
x = 37,546,937,161.10/286,915.68 - Step 6: Final answer
x = 130,864.01
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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.