Finding the Fourth Proportional to 292,749.23, 403,988.69 and 165,422.09
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Solution
The fourth proportional to 292,749.23, 403,988.69 and 165,422.09 is: 228,279.52
Step by Step Solution
- Step 1: Write the proportion equation
292,749.23 : 403,988.69 = 165,422.09 : x - Step 2: Convert to fraction form
292,749.23/403,988.69 = 165,422.09/x - Step 3: Cross multiply
292,749.23x = 403,988.69 × 165,422.09 - Step 4: Simplify right side
292,749.23x = 66,828,653,619.02 - Step 5: Solve for x
x = 66,828,653,619.02/292,749.23 - Step 6: Final answer
x = 228,279.52
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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.