Finding the Fourth Proportional to 380,217.24, 524,691.68 and 208,130.72
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Solution
The fourth proportional to 380,217.24, 524,691.68 and 208,130.72 is: 287,215.94
Step by Step Solution
- Step 1: Write the proportion equation
380,217.24 : 524,691.68 = 208,130.72 : x - Step 2: Convert to fraction form
380,217.24/524,691.68 = 208,130.72/x - Step 3: Cross multiply
380,217.24x = 524,691.68 × 208,130.72 - Step 4: Simplify right side
380,217.24x = 109,204,453,472.30 - Step 5: Solve for x
x = 109,204,453,472.30/380,217.24 - Step 6: Final answer
x = 287,215.94
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.