Finding the Fourth Proportional to 226,679.49, 312,828.21 and 131,167.71
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Solution
The fourth proportional to 226,679.49, 312,828.21 and 131,167.71 is: 181,017.52
Step by Step Solution
- Step 1: Write the proportion equation
226,679.49 : 312,828.21 = 131,167.71 : x - Step 2: Convert to fraction form
226,679.49/312,828.21 = 131,167.71/x - Step 3: Cross multiply
226,679.49x = 312,828.21 × 131,167.71 - Step 4: Simplify right side
226,679.49x = 41,032,959,929.10 - Step 5: Solve for x
x = 41,032,959,929.10/226,679.49 - Step 6: Final answer
x = 181,017.52
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1.5x scale
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.