Finding the Fourth Proportional to 286,898.36, 430,396.74 and 87,238.62
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Solution
The fourth proportional to 286,898.36, 430,396.74 and 87,238.62 is: 130,872.89
Step by Step Solution
- Step 1: Write the proportion equation
286,898.36 : 430,396.74 = 87,238.62 : x - Step 2: Convert to fraction form
286,898.36/430,396.74 = 87,238.62/x - Step 3: Cross multiply
286,898.36x = 430,396.74 × 87,238.62 - Step 4: Simplify right side
286,898.36x = 37,547,217,650.10 - Step 5: Solve for x
x = 37,547,217,650.10/286,898.36 - Step 6: Final answer
x = 130,872.89
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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.