Finding the Fourth Proportional to 226,746.73, 312,909.86 and 124,778.79
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Solution
The fourth proportional to 226,746.73, 312,909.86 and 124,778.79 is: 172,194.39
Step by Step Solution
- Step 1: Write the proportion equation
226,746.73 : 312,909.86 = 124,778.79 : x - Step 2: Convert to fraction form
226,746.73/312,909.86 = 124,778.79/x - Step 3: Cross multiply
226,746.73x = 312,909.86 × 124,778.79 - Step 4: Simplify right side
226,746.73x = 39,044,514,110.91 - Step 5: Solve for x
x = 39,044,514,110.91/226,746.73 - Step 6: Final answer
x = 172,194.39
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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.