Finding the Fourth Proportional to 386,349.54, 579,182.76 and 146,296.68
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Solution
The fourth proportional to 386,349.54, 579,182.76 and 146,296.68 is: 219,315.69
Step by Step Solution
- Step 1: Write the proportion equation
386,349.54 : 579,182.76 = 146,296.68 : x - Step 2: Convert to fraction form
386,349.54/579,182.76 = 146,296.68/x - Step 3: Cross multiply
386,349.54x = 579,182.76 × 146,296.68 - Step 4: Simplify right side
386,349.54x = 84,732,514,901.24 - Step 5: Solve for x
x = 84,732,514,901.24/386,349.54 - Step 6: Final answer
x = 219,315.69
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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.