Finding the Fourth Proportional to 286,691.91, 430,039.25 and 87,014.03
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Solution
The fourth proportional to 286,691.91, 430,039.25 and 87,014.03 is: 130,521.46
Step by Step Solution
- Step 1: Write the proportion equation
286,691.91 : 430,039.25 = 87,014.03 : x - Step 2: Convert to fraction form
286,691.91/430,039.25 = 87,014.03/x - Step 3: Cross multiply
286,691.91x = 430,039.25 × 87,014.03 - Step 4: Simplify right side
286,691.91x = 37,419,445,615.41 - Step 5: Solve for x
x = 37,419,445,615.41/286,691.91 - Step 6: Final answer
x = 130,521.46
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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.